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AS Physics Key Definition: Energy, Power & Resistance

Definition for Charge: Charge is the quantity of electric charge which passes a point in
the circuit when a current of 1A flows for 1 second.

Definition for Current: Current is the rate of flow of charge in a circuit.

Definition for…

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Definition for Ohm: One ohm is equivalent to the electrical resistance of a conductor
when 1A of current flows with a potential difference of 1 volt.

Definition for the Volt: One volt is equivalent to energy transfer per for one joule per

Ohmic Conductor: Filament Lamp:

Semi-Conductor Diode: Thermistor:



I suspect the graph for a thermistor is wrong.

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