Electromagnetic Induction

Section: Physics

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Question : 3 of 14

Marks: +1, -0

If a wheel with 24 metallic spokes each 40 cm long is rotated with a speed of

180 \text{ rev} / \text{ min}

in a plane normal to the horizontal component of earth's magnetic field, the emf induced between the axle and the rim of the wheel is E . If the number of spokes is made 12 and the wheel is rotated with a speed of

90 \text{ rev} / \text{ min}

in the same field, the induced emf is

[AP EAPCET 23 May 2025 S1]

E
2E
4E
0.5E

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