P5 Brief Notes
- Created by: cg97
- Created on: 09-03-13 21:01
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P5 – Electric Circuits
- Build-up of static is caused by friction
- Only electrons move – never the positive charges
- Like charges repel, opposite charges attract
- Electric current is a flow of charge round a circuit
- Current depends on voltage and resistance
- Power is the rate of energy transfer
- A voltmeter measures potential difference between two points
- The slope of a voltage-current graph shows resistance
- Resistors get hot when current passes through them
- In series circuits:
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