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Answer to Question #241103 in Atomic and Nuclear Physics for hassan ihtisham

Question #241103
An armature coil consists of 30 turns of wire, each of area A= 0.05 m2 and
total resistance of 10 22. It rotates in a magnetic field of 0.15T at an angular speed of 84 radian per second. Determine the value of maximum induced emf produced in the coil. A. IV
B. 500V C. 63V
D. 43V
1
Expert's answer
2021-09-23T08:29:56-0400

The maximum induced EMF (electromotive force) of a coil rotating in a magnetic field is

"E_\\text{max}=\\omega NBA=84\u00b730\u00b70.15\u00b70.05=18.9\\text{ V}."


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