Question

In a model generator, a 310-turn rectangular coil 0.075 m by 0.18 m rotates with an angular frequency of 12.2 rad/s in a uniform magnetic field of 0.64 T. What is the maximum emf induced in the coil

Answer 1

This question involves the concepts of the induced emf, magnetic field, and angular frequency.

The maximum emf induced in the coil is "32.68 volts".

The following formula can be used to find out the induced emf in the coil.

$E =N\omega AB\ Sin(\omega t)$

But, for maximum induced emf sin function should have a value of 1. Therefore,

$E = N\omega AB$

where,

E = induced emf = ?

N = No. of turns in the coil = 310 turns

ω = angular frequency = 12.2 rad/s

A = Area of coil = (0.075 m)(0.18 m) = 0.0135 m²

B = magnetic field = 0.64 T

Therefore,

$E=(310)(12.2\ rad/s)(0.0135\ m^2)(0.64\ T)$

E = 32.68 volts

Learn more about induced emf here:

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