A circular coil of radius 10 {\cm} and resistance of 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 0.25 { s}. If the magnitude of the induced emf is 3.8 \times 10^{-3} {\V}, then the number of turns of the coil is (Horizontal component of earth's magnetic field at the place is 3 \times 10^{-5} {\T} )

AP EAPCET 18th May 2023 Shift 1 Solved Paper

Section: Physics

Question : 112 of 160

Marks: +1, -0

A circular coil of radius 10‌cm and resistance of 2Ω 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∘ in 0.25 s. If the magnitude of the induced emf is 3.8×10−3V, then the number of turns of the coil is
(Horizontal component of earth's magnetic field at the place is 3×10−5T )

504 turns
458 turns
302 turns
608 turns

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