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A galvanometer coil is replaced by anoth...

A galvanometer coil is replaced by another coil of diameter one-fourth of the original diameter and the total number of turns as ten times the original number. What will be the new diflection if the same current is passed through it? Old deflection is `theta`.

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To solve the problem, we need to analyze the relationship between the deflection of a galvanometer and its physical parameters. The deflection (θ) of a galvanometer is given by the formula: \[ \theta = \frac{n I A B}{K} \] where: - \( n \) = number of turns in the coil ...
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