Figure P25.16 shows a 100-turn coil of wire of radius \(12 \mathrm{~cm}\) in a \(0.15 \mathrm{~T}\) magnetic field. The coil is rotated \(90^{\circ}\) in \(0.30 \mathrm{~s}\), ending up parallel to the field. What is the average emf induced in the coil as it rotates?

Figure P25.16

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