Question

When is the electromotive force greatest on the electrons in a coil of wire? Select one:a.when the coil of wire is moving perpendicular to the magnetic field b.when the coil of wire is stationary in a magnetic fieldc.when the coil of wire is outside the magnetic field d.when the coil is moving parallel to the magnetic field

Answer 1

Step-by-step explanation:

The electromotive force acts when the magnetic field is applied to a current-carrying wire.

The electromotive force is given by the formula

`F=qvBsin\theta`

Here, v is the velocity, q is the charge and theta is the angle between the magnetic field and direction of velocity.

The electromotive force will be maximum when the coil of wire is moving perpendicular to the magnetic field.

Thus, the correct option is a