A Square Loop (Length Along One Side = 20 Cm)

question 28

Multiple Choice

A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20° and increasing at the rate of 10°/s, what is the magnitude of the induced emf in the loop?

• A) 13 mV
• B) 0.27 V
• C) 4.8 mV
• D) 14 mV
• E) 2.2 mV

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