Purchase Solution

# Which will not Induce an EMF in a coil of wire

Not what you're looking for?

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.

##### 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 ...

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.