The Earths magnetic field is approximately 5x10 5 T. Suppose a square coil of edge length 0.10

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The Earth’s magnetic field is approximately 5x10–5 T. Suppose a square coil of edge length 0.10 m is rotated with frequency f = 400 Hz about an axis perpendicular to the Earth’s field (Fig. P21.71). The induced emf in this coil will vary with time according to V = V0 sin(2πft). What is the approximate value of V0?


Rotation axis Figure P21.71


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