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The coil of a galvanometer consists of 100 turns and effective area of $\mathrm{1 ~cm^2}$ . The restoring couple is $\mathrm{{10^{-8}} N-m/ rad}$ . The magnetic field between the pole pieces is 5 T. The current sensitivity of this galvanometer will be.
Option: 1
$5 \times 10^4 \mathrm{rad} / \mu \mathrm{amp}$

Option: 2
$5 \times 10^{-6} \mathrm{rad} / \mathrm{amp}$

Option: 3
$2 \times 10^{-7} \mathrm{rad} / \mathrm{amp}$

Option: 4
$5 \mathrm{rad} . / \mu \mathrm{amp}$

Answers (1)

best_answer

$\frac{\theta}{\mathrm{I}}=\frac{\mathrm{NAB}}{\mathrm{K}}$

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HARSH KANKARIA

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