A coil of 10.0 turns is in the shape of an ellipse having a major axis of 10.0 cm and a minor axis of 4.00 cm. The coil rotates at 100 rpm in a region in which the magnitude of Earth’s magnetic field is 55 μT. What is the maximum voltage induced in the coil if the axis of rotation of the coil is along its major axis and is aligned (a) perpendicular to Earth’s magnetic field and (b) parallel to Earth’s magnetic field? Note: The area of an ellipse is given by A=πab, where a is the length of the semimajor axis and b is the length of the semiminor axis.

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