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Question 20183
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Magnetism: Tangent Galvanometer MCQ

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Tangent GalvanometerEasyQuestion 20183

Question

In a tangent galvanometer, current I is proportional to:
  1. A
    cosθ
  2. B
    sinθ
  3. C
    tanθ
    Correct
  4. D
    θ²

Correct answer

tanθ

Explanation

I = (2rBH/μ₀N) tanθ. This is why it is called the tangent galvanometer — deflection gives tan of angle, not angle itself.

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