Why are 2, 50 and 500 turns provided in the coil of tangent galvanomet

1.	Why are 2, 50 and 500 turns provided in the coil of tangent galvanometer?
Answer» The different turns (n) in the coil of tangent galvanometer are chosen according to the strength of current (I) to be measured. For low current, the larger number of turns in the coil of tangent galvanometer are to be used and vice-versa. This is because in tangent galvanometer, `Ixxn prop tan theta`. Due to it, the deflection `theta` will be controlled and it will be within the maximum accuracy limit.

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Why are 2, 50 and 500 turns provided in the coil of tangent galvanometer?

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