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Q.

What is the position of a galvanometer needle when zero current is flowing through the circuit?

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a

The pointer deflects to left

b

The pointer remains at zero.

c

The pointer deflects 90o to the right.

d

The pointer deflects just to the right

answer is D.

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Detailed Solution

A galvanometer is an instrument that can detect the presence of a current in a circuit. For zero current flowing through the circuit, the pointer remains at zero or the centre of the scale. Depending on the direction of the current, the pointer deflects to the left or right of the zero mark.

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