Generating a maximum emf
Twenty loops of wire having a radius of 7.5 cm rotates around a diameter in the uniform magnetic field of 1.6 T. To generate a maximum emf of around 20.0 V, it must rotate at:
(i) 0
(ii) 2.7 rad/s
(iii) 5.6 rad/s
(iv) 35 rad/s
(v) 71 rad/s
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