A Flat Square Coil of Wire with 15 Turns and an Area

question 118

Multiple Choice

A flat square coil of wire with 15 turns and an area of $0.40 \mathrm {~m} ^ { 2 }$ is placed with the plane of its area parallel to a magnetic field of $0.75 \mathrm {~T}$ . The coil is flipped so its plane is perpendicular to the magnetic field in a time of $0.050 \mathrm {~s}$ . What is the magnitude of the average induced emf in the coil?

• A) \(90 \mathrm {~V}\)
• B) \(6.0 \mathrm {~V}\)
• C) \(45 \mathrm {~V}\)
• D) \(36 \mathrm {~V}\)

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