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Starter Quiz

Question 1 of 6
1 of 6
Match the following quantities to its unit symbol.
Click and drag answers to change the order, or select using Tab then move by pressing Space and the arrows on your keyboard.
V
Ω
A
potential difference
resistance
current
Current is rate of flow of charge. Resistance is a measure of how difficult it is for current to flow in a circuit. Potential difference, which is sometimes called voltage, is a measure of the ‘push’ on electrons in a circuit.