A Circular Coil of Radius 10 Cm and a Separate

question 49

Multiple Choice

A circular coil of radius 10 cm and a separate square coil of side 20 cm are both rotated in a magnetic field of 1.5 T.If the circular coil is rotated at a frequency of 60 Hz,then at what frequency must the square coil be rotated in order for both coils to have the same maximum induced voltage?

• A)47 Hz
• B)60 Hz
• C)76 Hz
• D)30 Hz
• E)19 Hz

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