An electron moves in a circular orbit of radius R with angular acceleration α. A conducting loop of radius r (r≪R) is placed at the centre. The emf induced in the smaller loop is:
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An electron moves in a circular orbit of radius R with angular acceleration α. A conducting loop of radius r (r≪R) is placed at the centre. The emf induced in the smaller loop is:

G1 Physics · Accepted Answer

For a moving conductor, ε=∫(v⃗×B⃗)·dℓ⃗. Combine this with Ohm’s law and Lenz’s law where required. The result is α 4R µ₀er 2.