Question 5

A circular coil of radius 10 cm, 500 turns and resistance 2 Ω is placed with its plane, perpendicular to the horizontal component of the earth’s magnetic field. It is rotated about its vertical diameter through $$180^\circ$$ in 0.25s. The induced e.m.f in the coil is (Take $$H_E = 3.0 \times 10^{-5} T$$)

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