Electrical circuits Flashcards

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1
Q

Voltage

A

Energy transferred per unit charge

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2
Q

J

A

V*C

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3
Q

E

A

Q*V

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4
Q

V

A

I*R

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5
Q

P

A

I*V

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6
Q

E

A

IVt

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7
Q

In series

A

Current remains the same and voltage gets used up by the components

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8
Q

In parallel

A

Current splits at junctions and voltage remains the same

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9
Q

For fixed resistors

A
  • y=mx+c
  • I=V/R=1/R*V
  • m=1/R
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10
Q

How to find the I-V graph for a component

A
  • Circuit diagram
  • Set-up the circuit diagram with the voltmeter in parallel across the component and the ammeter in series
  • Use the variable resistor to change the total resistance
  • Measure Voltage and Current
  • Repeat and average
  • Plot average current against average voltage
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