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Magnetic Meridian

A boat is mov...

Question

A boat is moving due East in a region where the earth's magnetic field is 5×10^-5 T due north and horizontal . The boat carries a vertical aerial 2m long. If the speed of the boat is 1.50m/s , what will be the magnitude of the induced emf in the wire of aerial !

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Solution

E induced = B x v x l

= 5.0 x 10^-5 x 1.50 x 2

= 10.0 x 10^-5 x 1.50

= 15 x 10^-5

= 0.15 mV

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