Terminal potential difference of a cell:
Correct answer: B. Decreases with increase in internal resistance
- A. Increases with increase in its internal resistance
- B. Decreases with increase in internal resistance
- C. Is independent of its internal resistance
- D. None of these options is correct
Explanation
The internal resistance of a battery is defined as the opposition to the flow of current within the battery which means an increase in internal resistance, decreases the terminal potential difference so option B is correct.E = V- Ir where V is terminal potential difference and r is internal resistance of the battery
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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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