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Q.

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 $3.0 \times 10^{- 2} T$ . The maximum emf induced the coil will be …………. $\times 10^{- 2}$ volt (rounded off to the nearest integer)

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Detailed Solution

V = N B A $ω$
$= 20 \times 3 \times 10^{- 2} \times π \times 64 \times 10^{- 4} \times 50 = 192 π 10^{- 3} V$

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