Current, voltage, resistance and electricity

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Current - Rate of flow of charge carried by electrons. Symbol - I, Measured in amps. The faster the electrons, the greater the current. Brighter bulb requires bigger current.

Voltage - movement of electrons around a circuit. Bigger the voltage the faster the electrons (current is bigger). Also measures how much electrical energy each electron can carry at any point in the circuit. Also is positively charged, therefore makes electrons move because…


jamielee marsh



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