A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal component of earth’s magnetic field is Bʜ=3×10⁻⁵ T. What will be the current which gives a deflection of 45⁰?

Options

(a) 0.39 A
(b) 0.29 A
(c) 0.19 A
(d) 0.09 A

Correct Answer:

0.19 A

Explanation:

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