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- An ammeter and a voltmeter are joined in series to a cell. Their readings are A and V respectively. If a resistance is now joined parallel with the voltmeter.Opt
An ammeter and a voltmeter are joined in series to a cell. Their readings are A and V respectively. If a resistance is now joined parallel with the voltmeter.
both A & V will increase
both A & V will decrease
A will increase and V will decrease
A will decrease and V will increase
Answers (1)
When a resistance joined in parallel with the voltmeter, the total resistance of the circuit decreases. Current will increases and ammeter reading will increase. The equivalent resistance across the voltmeter decreases and hence its reading will decrease.
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