1.

A boat is moving due east in a region where the earth's magnetic field is 5.0 xx 10^(-5)NA^(-1)m^(-1) due north and horizontal. The boat carries a vertical aerial 2 m long. If the speed of the boat is 1.50 m s^(-1), the magnitude of the induced emf in the wire of aerial is

Answer»

0.50 mV
0.15 mV
1 mV
0.75 mV

Solution :Induced emf `|epsi|=B_(H).l.v=5.0 XX 10^(-5) xx 2 xx 1.5=15 xx 10^(-5)V=0.15mV`.


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