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In a moving coil galvanometer, the deflection of the coil θ is related to ele. current I by the relation.

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In a moving coil galvanometer, the deflection of the coil θ is related to ele. current I by the relation. 

(a) I ∝ tanθ 

(b) I ∝ θ 

(c) I ∝ θ2 

(d) I ∝ √θ

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1 Answer

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Best answer

The correct option (b) I ∝ θ

Explanation:

For moving coil galvanometer  τ = NIAB  & τ = Kθ

∴ NIAB = Kθ

I = [(Kθ)/(NAB)]

∴  I ∝ θ

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