A magnetic field of 2 × 10⁻² T acts at right angles to a coil of area 100 cm² with 50 turns. The average e.m.f. induced in the coil is 0.1 V, when it is removed from the field in time ' t '. The value of ' t ' is (a) 2 × 10⁻³ s (b) 0.5 s (c) 0.1 s (d) 1 s

Answer: (c). t = NBA/e t = 50× 2× 10⁻²× 10⁻²0.1 = 0.1 s So the answer is (c) 0.1 s.

A magnetic field of 2 × 10⁻² T acts at right angles to a coil of area… | MHT CET 2023 (14 May, Shift 1)

Q42MHT CET 2023 · 14 MAY · SHIFT 1Easy

Magnetic Flux & Faraday's Law

A magnetic field of $2 \times 10^{-2}\text{ T}$ acts at right angles to a coil of area $100\text{ cm}^{2}$ with 50 turns. The average e.m.f. induced in the coil is $0.1\text{ V}$ , when it is removed from the field in time ' $t$ '. The value of ' $t$ ' is

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Answer: (c)

$t = \frac{NBA}{e}$
$t = \frac{50\times 2\times 10^{-2}\times 10^{-2}}{0.1} = 0.1$ s
So the answer is (c) $0.1$ s.

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