3 rd quarter review
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3 rd Quarter Review. Question 1 - 10. A positive charge of 5.6*10^-6C is acted upon by a force of 50N at a certain distance. What is the electric field at that same distance?. Answer 1 – 10. =(50)/(5.6*10^-6) =8.93*10^6. Question 1 - 20. - PowerPoint PPT PresentationTRANSCRIPT
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Electrostatics Math
Electrostatics MC
Electric Current & Circuits
Magnetism Math
Magnetism MC
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
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Question 1 - 10
•A positive charge of 5.6*10^-6C is acted upon by a force of 50N at a certain distance. What is the electric field at that same distance?
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Answer 1 – 10
•=(50)/(5.6*10^-6)•=8.93*10^6
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Question 1 - 20
•How many electrons must be removed from an electrically neutral gold medal to give it a charge of 3.96*10^-6.
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Answer 1 – 20
• =(3.96*10^-6)/(1.6*10^-19)• =2.475*10^13
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Question 1 - 30
• What is the net force on charge 2 if charge 1 is -2C, charge 2 is 5C and charge 3 is 3C? D= 4m, k=1
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Answer 1 – 30
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Question 1 - 40• Three positive charges of q1=3.5*10^-6,
q2=8.0*10^-6 and q3=2.3*10^-6, respectively, are arranged in a triangle, as shown in figure. Find the magnitude of the electric force on the q2 charge.
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Answer 1 – 40
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Question 1 - 50• A charge q1=+10.0uc is at the origin, and a
charge q2=-18.0uc is on the x-axis .65m from the origin, Find the electric field strength at Point P, which is on the y-axis .255m from the origin. Angle is 62.
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Answer 1 – 50
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Question 2 - 10
•When there is an equal amount of positive and negative charges on an object, the object is………………..
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Answer 2 – 10
•Neutral
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Question 2 - 20
•Electric field lines indicate…………………..
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Answer 2 – 20
•Direction and speed
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Question 2 - 30
•The leyden jar shown had negative charge on the inside cup and the outside cup(the one in middle)………….
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Answer 2 – 30
•Positive
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Question 2 - 40
•When the charge is doubled on one particle, the attractive force between two particles is……
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Answer 2 – 40
•Doubled
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Question 2 - 50
•A metal can is brought near a negative charged PVC pipe. The can is _____________ to the pipe because the can is ____________
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Answer 2 – 50
•Attracted and polarized
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Question 3 - 10
•In solid conductors , electric current is the flow of………….
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Answer 3 – 10
•Electrons
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Question 3 - 20
•The relationship between current and potential in Ohm’s Law is…………
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Answer 3 – 20
•Directly proportional
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Question 3 - 30
• How much current will flow through .1 Ohm resistor?
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Answer 3 – 30
VOLTAGE CURRENT RESISTANCE 4.655 46.55 .110.345 25.8625 .410.345 20.69 .515 46.55 29/90
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Question 3 - 40
•A circuit has only one resistor, a 50 ohm one. If a second 50 ohm resistor is added in parallel, the overall resistance will be…
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Answer 3 – 40
•25 ohms
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Question 3 - 50
• What is the current for resistor 2?(2 decimals) • R1=13• R2=24• R3=20• R4=6
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Answer 3 – 50
VOLTAGE CURRENT RESISTANCE 23.12 930/523 136.88 .29 246.88 .344 206.88 1.15 630 930/523 523/31
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Question 4 - 10
• A wire carries a current of 20amps at an angle of 90 degrees to a magnetic field “B”. If the wire is 10m long and the magnetic force is 50N, what is the strength of the magnetic field?
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Answer 4 – 10
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Question 4 - 20
•A wire has a magnetic field of strength of 50T. If the wire is 16.5 meters long and the magnetic for is 100N. What is the current?
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Answer 4 – 20
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Question 4 - 30• Dr.V is on his Jetpack and is flying due east at
120m/s passing over Atlanta where the magnetic field of the earth is 3.3*10^-5 Tesla. Dr.V has a positive charge of 16*10^8C. What is the magnitude of magnetic force in Newton's on Dr.V?
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Answer 4 – 30
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Question 4 - 40• Dr.V found an unknown compound which has a force
of 5*10^-9N and a charge of 2nC and a has horizontal velocity of 5000m/s. He needs your help to help find him the magnetic field force of the
unknown compound.
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Answer 4 – 40
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Question 4 - 50
• A square coil of wire in a motor coil containing a single turn is placed in a uniform 10.8T magnetic field. Each side has a length of 10m and the current of the coil is 15amps. Determine the magnitude of the magnetic force on the top side of the wire.
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Answer 4 – 50
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Question 5 - 10
• Is this a positive or a negative current?
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Answer 5 – 10
•Positive
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Question 5 - 20
•Where is the magnetic field strength the closet?
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Answer 5 – 20
•Close to a magnet pole
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Question 5 - 30
• What is the name of the device that converts electric energy into mechanical energy?
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Answer 5 – 30
• Electric motor
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Question 5 - 40
• What direction is the force using FBI
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Answer 5 – 40
•Up
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Question 5 - 50
• What direction is the force using FBI
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Answer 5 – 50
•In page and diagonal