An Ac Generator Contains 80 Flat Rectangular Loops of Wire $12 \mathrm {~cm}$

question 73

Multiple Choice

An ac generator contains 80 flat rectangular loops of wire, each of which is $12 \mathrm {~cm}$ long and $8 \mathrm {~cm}$ wide. The loops rotate at $1200 \mathrm { rpm }$ about an axis through the center and parallel to the long side. If the magnetic field in which the loop rotates is uniform, has magnitude $0.30 \mathrm {~T}$ , and is perpendicular to the axis of rotation, what will be the maximum output voltage of this generator?

• A) \(20 \mathrm {~V}\)
• B) \(27 \mathrm {~V}\)
• C) \(35 \mathrm {~V}\)
• D) \(29 \mathrm {~V}\)

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