Which will not Induce an EMF in a coil of wire
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Which of the following cases will NOT induce an EMF in a coil of wire? (True/False problem)
1) By increasing the magnetic field in which a wire coil sits.
2) By rotating a coil of wire counter-clockwise in a constant magnetic field.
3) By pushing a bar magnet into a coil of wire.
4) By decreasing the area of a coil placed in a constant magnetic field.
5) By leaving a coil of wire in a constant magnetic field.
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Solution Summary
Provides steps necessary to determine what will not induce an EMF in a coil of wire.
Solution Preview
The induced emf is equal to
E = - N delta (flux)/delta (time)
= - N delta (magnetic field X area) / delta (time)
1) When you increase the magnetic field, B changes. delta B ...
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