A Square Coil of Wire with Side 9

question 19

Multiple Choice

A square coil of wire with side 9.0 cm and 8 turns sits in a uniform magnetic field of 2 T that is perpendicular to the plane of the coil.If an EMF of 0.5 V is induced in the coil when the magnetic field is reversed,find the time taken for the field reversal.

• A)0.26 s
• B)1.0 s
• C)5.8 s
• D)1.6 s
• E)0.52 s

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