A circular coil of radius 8 . 0   cm and 20 turns is rotated about its vertical diameter with an…

A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of 50 rad s-1 in a uniform horizontal magnetic field of 3.0×10-2 T. The maximum emf induced in the coil will be _______×10-2 volt (rounded off to the nearest integer).

Solution

Emf=BωNAsinωt

Emfmax=BωNA=BωNπR2

=3×10-2×50×20×π×64104≈60×10-2 V

Asked in: JEE Main 2021 (26 Aug Shift 2)

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