technical report-presentation0

8/7/2019 Technical Report-presentation0

http://slidepdf.com/reader/full/technical-report-presentation0 1/19

Done by : Mohd Fathllah Bin Rosli

(ND/AVT/19)




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�Introduction ----------------- 1

�Theoretically-----------------2-9Formula--------------------- 4-5

�Practically-----------------10-12

�Conclusion--------------------13




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� This Topic is about calculating:

¾ RESISTANCE

¾ CURRENT

¾ Voltage Drop

TO SHOW AND PROVE THAT THE CURRENT AND VOLTAGE OFANY RESISTORS IN SERIES OR PARALLEL CIRCUIT CAN BE

CALCUATED THEORITICALLY AND MEASURED PRACTICALLY

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� Accessories such as«.

Paper

Calculator

Pen or Pencil

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� Equipments such as««

Resistor

Power Supply

Digital Multi-meter

Bread board

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� How to calculate resistance in series , parallel andseries parallel circuits

¾ Series circuits- RT =R1+R2

¾ Parallel Circuit- RT =R1xR2/R1+R2

¾ Series-Parallel circuit- First calculate the parallel resistorsand then the series

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� How to calculate voltage , current and resistance

¾ Voltage- Resistance x Current (Ohm x Amps)

¾ Current- Voltage / Resistance (Volts/Ohms)

¾ Resistance- Voltage/Current(Volts/Ohms)

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� Calculate the total resistance� Calculate the current flow across R1� Calculate the total current

R1-75 �

R2-75 �

6 V

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Calculate total resistance,

RT = R1xR2/R1+R2

=75 �x75 �/75 �+75 �

=37.5�

7

Back to the

diagram




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Calculate The Current Flow Across R1

I=V / R

=6 Volt / 75 �

=0.08amp

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Back to the

diagram




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Calculate the total current

IT=V/RT

=6 Volt /37.5 �

=0.16 Amps

9

Back to the

diagram




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Measuring Total Resistance

We can use either Avo-meter or Digital Multi-meter byconnecting lead positive and lead negative to the circuit.

For digital multi-meter press button ´�µ.

Reading we get:37.463 �

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Measuring the current flow across R1

To measure current, connect the positive and

negative lead in series with R1.Then press the ´Aµbutton.

Reading:0.0793Amps

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Measuring The Voltage Drop

In measuring Voltage press the V(DC)button place thelead at the resistor

Reading:6.32 volt

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A Theory Practical

Total Resistance 37.5� 37.463�

Current across R1 0.8Amps 0.0793Amps

Supply Voltage Given[6 volt] 6.32 Volt

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� The calculation that we get from theory is slightlydifferent from practical.

� This is because of the tolerance from each resistor is may effect the calculation that come out from

practical.

� Apart from that, some reasons that effecting in thecalculation result is because of the error, resistance

in our body, and maybe because of thecalibrating problem of equipment that we used

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� www.wikkipedia.org

� www.101science.com

� www.hobbyproject.com

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