A device called a flip coil can be used to measure the earth's magnetic field. The coil has 100 turns and an area of \(0.010 \mathrm{~m}^{2}\). It is oriented with its plane perpendicular to the earth's magnetic field, then flipped \(180^{\circ}\) so the field goes through the coil in the opposite direction. The earth's magnetic field is \(0.050 \mathrm{mT}\), and the coil flips over in \(0.50 \mathrm{~s}\). What is the average emf induced in the coil during the flip?

A. \(0.050 \mathrm{mV}\)

B. \(0.10 \mathrm{mV}\)

C. \(0.20 \mathrm{mV}\)

D. \(1.0 \mathrm{mV}\)