Question 135: Electromagnetic Induction

Question

A boat is moving due east in a region where the earth's magnetic fields is $$5.0 	imes {10^{ - 5}}$$ $$N{A^{ - 1}}\,{m^{ - 1}}$$ due north and horizontal. The best 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 :

Accepted Answer

Induced $$emf$$ $$ = v{B_H}l = 1.5 	imes 5 	imes {10^{ - 5}} 	imes 2$$
$$ = 15 	imes {10^{ - 5}} = 0.15\,mV$$

Answer

$$0.75$$ $$mV$$

Answer

$$0.50$$ $$mV$$

Answer

$$0.15$$ $$mV$$

Answer

$$1$$ $$mV$$

Electromagnetic Induction

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