An instrument which can measure potential without drawing any current is called:
Correct answer: B. Potentiometer
- A. Voltmeter
- B. Potentiometer
- C. Galvanometer
- D. Ammeter
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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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