a falkirk high school presentation ohm’s law for each of the questions, click the letter of the...
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![Page 1: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/1.jpg)
A Falkirk High School presentation
![Page 2: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/2.jpg)
Ohm’s Law
For each of the questions, click the letter of the correct answer Click to Click to
start the start the testtest
![Page 3: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/3.jpg)
When a resistor is connected to a 3 Volt battery, a current of 6 Amps flows through it. Calculate the size of the resistor.
B
C
D
A 0.5 ohms
2 ohms
3 ohms
18 ohms
1 a
V
A
![Page 4: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/4.jpg)
When a resistor is connected to a 3 Volt battery, a current of 6 Amps flows through it. Calculate the size of the resistor.
First draw the triangle that links voltage, current and resistance
the answer
R I
V
Sorry you’re wrong, let me show you how to do it.
the question
Now write down what the question is asking you to calculate. (Resistance)
R =
Now cover up R with your finger
And see what’s left in the triangle
I
V6
3= = 0.5 ohm
Now substitute the numbers into the equation and calculate the answer.
Click here for the next question
V
I
![Page 5: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/5.jpg)
When a resistor is connected to a 12 Volt battery, a current of 8 Amps flows through it. Calculate the size of the resistor.
A
B
C
D
98 ohms
4 ohms
1.5 ohms
0.66 ohms
1 b
![Page 6: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/6.jpg)
When a resistor is connected to a 240 Volt supply, a current of 6 Amps flows through it. Calculate the size of the resistor.
A
B
C
D
40 ohms
20 ohms
10 ohms
0.025 ohms
1 c
![Page 7: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/7.jpg)
When a resistor is connected to a 9 Volt battery, a current of 45 milliamps flows through it. Calculate the size of the resistor.
A
B
C
D
6 ohms
0.2 ohms
20 ohms
200 ohms
2 a
![Page 8: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/8.jpg)
Before you can start a calculation, you must make sure all the measurements are in Standard Units.
R I
VThis is the same sort of calculation as before but this time the current is in milliamps.
To change milliamps to Amps, you must divide by 1000
So 45 milliamps = 45 / 1000 = 0.045 A
R =I
V0.045
9= = 200 ohms
so
Click here for the next question
![Page 9: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/9.jpg)
When a resistor is connected to a 3 Volt battery, a current of 150 milliamps flows through it. Calculate the size of the resistor.
A
B
C
D
20 ohms
2 ohms
5 ohms
50 ohms
2 b
![Page 10: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/10.jpg)
When a resistor is connected to a 1.5 Volt cell, a current of 150 milliamps flows through it. Calculate the size of the resistor.
A
B
C
D
0.1 ohms
100 ohms
1 ohms
10 ohms
2 c
![Page 11: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/11.jpg)
Calculate the current that would flow through a 3 ohm resistor when it is connected to a 1.5 Volt cell.
A
B
C
D
2 A
4.5 A
0.5
1.5 A
3 a
![Page 12: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/12.jpg)
Calculate the current that would flow through a 3 ohm resistor when it is connected to a 1.5 Volt cell.
First draw the triangle that links voltage, current and resistance
the answer
R I
V
Sorry you’re wrong, let me show you how to do it.
the question
Now write down what the question is asking you to calculate. (Current)
I =
Now cover up I with your finger
And see what’s left in the triangle
R
V3
1.5= = 0.5 A
Now substitute the numbers into the equation and calculate the answer.
Click here for the next question
V
R
![Page 13: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/13.jpg)
Calculate the current that would flow through a 100 ohm resistor when it is connected to a 20 Volt supply.
A
B
C
D
0.1 A
0.2 A
5 A
2000 A
3 b
![Page 14: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/14.jpg)
Calculate the current that would flow through a 30 ohm resistor when it is connected to a 3 Volt battery.
A
B
C
D
90 A
10 A
1 A
0.1 A
3 c
![Page 15: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/15.jpg)
Calculate the current that would flow through a 3 k resistor when it is connected to a 6 Volt battery.
A
B
C
D
18 A
0.018 A
0.002 A
2 A
4 a
![Page 16: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/16.jpg)
Before you can start a calculation, you must make sure all the measurements are in Standard Units.
R I
VThis is the same sort of calculation as before but this time the resistance is in k.
To change k to , you must multiply by 1000
So 3 k = 3 x 1000 = 3000
I =R
V3000
6= = 0.002 A
so
Click here for the next question
![Page 17: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/17.jpg)
Calculate the current that would flow through a 6 k resistor when it is connected to a 24 Volt battery.
A
B
C
D
0.004 A
0.04 A
0.4 A
4 A
4 b
![Page 18: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/18.jpg)
Calculate the current that would flow through a 9 k resistor when it is connected to a 9 Volt battery.
A
B
C
D
1 A
0.1 A
0.01 A
0.001 A
4 c
![Page 19: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/19.jpg)
Calculate the voltage over a 6 resistor if a current of 12 A flows through it.
A
B
C
D
0.5 V
2 V
72 V
0.002 V
5 a
![Page 20: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/20.jpg)
Calculate the voltage over a 6 resistor if a current of 12 A flows through it.
First draw the triangle that links voltage, current and resistance
the answer
R I
V
Sorry you’re wrong, let me show you how to do it.
the question
Now write down what the question is asking you to calculate. (Voltage)
V =
Now cover up V with your finger
And see what’s left in the triangle
R x I = = 72 V
Now substitute the numbers into the equation and calculate the answer.
Click here for the next question
6 x 12
R
I
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Calculate the voltage over a 30 resistor if a current of 0.5 A flows through it.
A
B
C
D
60 V
15 V
0.0016 V
150 V
5 b
![Page 22: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/22.jpg)
Calculate the voltage over a 2 resistor if a current of 5 A flows through it.
A
B
C
D
0.4 V
0.1 V
2.5 V
10 V
5 c
![Page 23: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/23.jpg)
Calculate the current that would flow through a 60 resistor when it is connected to a 3 Volt battery.
A
B
C
D
0.05 mA
20 mA
50 mA
180 mA
6 a
![Page 24: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/24.jpg)
Calculate your answer as before. R I
VThis is the same sort of calculation as before but this time the answer is in mA.
To change A to m, you must multiply by 1000
0.05 A = 0.05 x 1000 = 50 mA
I =R
V60 3= = 0.05 A
so
Click here for the next question
![Page 25: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/25.jpg)
Calculate the current that would flow through a 480 resistor when it is connected to a 12 Volt battery.
A
B
C
D
25 mA
40 mA
0.025 mA
0.04 mA
6 b
![Page 26: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/26.jpg)
Calculate the current that would flow through a 1000 resistor when it is connected to a 250 Volt supply.
A
B
C
D
2.5 mA
25 mA
250 mA
4 mA
6 c
![Page 27: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/27.jpg)
When a resistor is connected to a 120 V supply, the current through it is measured to be 0.02 A. Calculate the size of the resistor.
A
B
C
D
6000 k
600 k
60 k
6 k
7 a
![Page 28: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/28.jpg)
Calculate your answer as before. R I
VThis is the same sort of calculation as before but this time the answer is in k.
To change to k, you must divide by 1000
6000 = 6000 / 1000 = 6 k
R =I
V0.02
120= = 6000
so
Click here for the next question
![Page 29: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/29.jpg)
When a resistor is connected to a 9 V supply, the current through it is measured to be 0.09 A. Calculate the size of the resistor.
A
B
C
D
0.1 k
1 k
10 k
100 k
7 b
![Page 30: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/30.jpg)
When a resistor is connected to a 3 V supply, the current through it is measured to be 0.0015 A. Calculate the size of the resistor.
A
B
C
D
2000 k
200 k
20 k
2 k
7 c
![Page 31: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/31.jpg)
The picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
A
B
C
D
1.9
3.3
0.3
3.7
8 a
![Page 32: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/32.jpg)
Sorry, you’re WRONG!
Maybe you’ve made a mistake in reading the meter scales.
The Voltmeter reading is 2.5 V
So the ammeter reading is 0.76 A
To calculate the resistance, you use
R =I V
0.76 2.5= = 3.3
On the ammeter, 0.7 would be here.7
![Page 33: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/33.jpg)
The picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
A
B
C
D
1.9
9.4
2.4
1.2
8 b
![Page 34: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/34.jpg)
Sorry, you’ve made another mistake.
Click here to go back and
try again
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The picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
A
B
C
D
9.2
7.7
0.69
0.13
8 c
![Page 36: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/36.jpg)
Sorry, you’ve made another mistake.
Click here to go back and try again
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A
B
C
D
5
6
5000
0.2
9 aThe picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
![Page 38: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/38.jpg)
Sorry you’re wrong.
Maybe you didn’t notice that the ammeter was measuring in milliamps
To change mA to Amps, divide by 1000
So 0.3 mA = 0.3 / 1000 = 0.0003 A
Click here for the next question
![Page 39: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/39.jpg)
A
B
C
D
4.1
4640
4800
4100
9 bThe picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
![Page 40: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/40.jpg)
Sorry, you’ve made another mistake.
Click here to go back and try again
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A
B
C
D
8333
10000
10
8.3
9 cThe picture shows a circuit used to determine the size of a resistor. Close-ups of the readings are shown.
Calculate the size of the resistor.
![Page 42: A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test](https://reader030.vdocuments.net/reader030/viewer/2022032605/56649e715503460f94b704ee/html5/thumbnails/42.jpg)
Sorry, you’ve made another mistake.
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