A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT with its plane perpendicular to the field. The area of the coil is shrinking at a constant rate of 0.5 m²s⁻¹.The emf induced in the coil is

Options

(a) 10mV
(b) 20 mV
(c) 80 mV
(d) 40 mV

Correct Answer:

20 mV

Explanation:

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