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In the given circuit, the sliding contact C is moved from A to B (a) The reading of both the ammeter and voltmeter remains constant(b) Reading of both ammeter and voltmeter will increase(c) Reading of ammeter remains constant and that of voltmeter increases(d) Reading of ammeter remains constant and that of voltmeter decreases |
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Answer» Correct option(c) Explanation: As sliding contact C is moved from A to B resistance of circuit remains unchanged, so Reading of ammeter remains constant. As length AC increases, the potential difference across it also increases, as a result reading of voltmeter increases. |
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