A rectangular coil with dimensions 0.14 m 0.14 m by 0.27 m 0.27 m has 550 550 turns of wire. It is rotated about its long axis in a magnetic field of 0.50 T . 0.50 T. At what frequency f f must the coil be rotated for it to generate a maximum potential of 130 V ?

The frequency of coil must be 1.99 Hz

Explanation:

Given:

Magnetic field T

Area of rectangular coil

Maximum potential V

Number of turns

For finding the frequency we use faraday's law

Maximum induced emf in rectangular coil is given by,

Where

    Hz

Therefore, the frequency of coil must be 1.99 Hz

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