Verified Solution • 2025–26 Session moderate

QJEEM21Ph027f: JEE Main 2021 Physics - Class 12 JEEM21Ph027f Solution: A circular coil of radius 8.0 cm and 20 turns is rotated about…

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 the coil will be ................. × 10−2 volt (rounded off to the nearest integer)

Step-by-Step Verified Solution

Maximum emf ε=NωAB

N = 20, ω = 50, B = 3 × 10−2 T

ε = 20 × 50 × π × (0.08)2 × 3 × 10−2 = 60.28 × 10−2

Rounded off to nearest integer = 60

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