Current can be measured with the help of:

Moving coil galvanometer

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Ammeter

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Tangent galvanometer

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Hot-wire voltmeter

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Solution

The correct option is B Ammeter
Answer is B.
A hot wire ammeter is device which measures alternating or direct current by sending it through a fine wire, causing the wire to heat and to expand or sag, deflecting a pointer. Also known as thermal ammeter.
Hence, A.C. can be measured with the help of hot wire ammeter.

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