Current is a measure of
Correct answer: B. amount of charge that moves past a point per unit time
- A. force that moves a charge past a point
- B. amount of charge that moves past a point per unit time
- C. resistance to the movement of a charge past a point
- D. energy used to move a charge past a point
Explanation
Current (I) is defined as the rate of flow of charge, i.e., I = ΔQ/Δt.
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About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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