MHT CET Physics question

An ammeter and a voltmeter are connected in series to a cell. Their readings are X and Y respectively. If a resistance is now joined in parallel with the voltmeter, then

(A)Both X and Y will increase
(B)Both X and Y will decrease
(C)X will decrease, Y will increase
(D)X will increase, Y will decreaseCorrect

Answer: (D)

Solution

The resistance in parallel lowers the resistance of the external circuit, so the current (ammeter reading X) increases; the larger current causes a larger drop across the ammeter and

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Question ID VK-045269