A 103-turn square wire coil of area 0.0361 m 2 and L = 19.0 cm rotates about a v

Question

A 103-turn square wire coil of area 0.0361 m2 and L = 19.0 cm rotates about a vertical axis at 1660 rpm, as indicated in the figure below.

The horizontal component of the Earth's magnetic field at the location of the loop is 1.69E-5 T. Calculate the maximum emf induced in the coil by the Earth's field.

A 103-turn square wire coil of area 0.0361 m2 and L = 19.0 cm rotates about a vertical axis at 1660 rpm, as indicated in the figure below. The horizontal component of the Earth's magnetic field at the location of the loop is 1.69E-5 T. Calculate the maximum emf induced in the coil by the Earth's field.

Explanation / Answer

induced emf e = NABw

here W = 1660 *2pi/60 = 173.74

so e = 103* 0.0361 * 1.69*10^-5 * 173.74

e = 0.0109 volts or 10.9 mVolts

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