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A wire is bent in a semi-circle as shown here.

The semi-circle has a radius of r= m. The crank is turned, causing the semi-circle to rotate in the magnetic field. The crank is turned at = revs/second and the magnetic field has strength B= Tesla. Find

  1. The frequency of the EMF induced in the semi-circle.
  2. The amplitude of the EMF induced in the semi-circle.

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