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A current of `10^-7A` produces 50 division deflection in a galvanometer. Find its figure of merit.

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A current of `10^-7A` produces 50 division deflection in a galvanometer. Find its figure of merit.
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Figure of merit,
`k=I/theta=(10^-7)/(50)`
`=2xx10^-9A//di v`
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