Please qualitatively describe drift velocity and why it opposes the relative motion of a conductor and a magnet.

Please qualitatively describe drift velocity and why it opposes the relative motion of a conductor and a magnet. Five to six sentences is enough.

Expert Solution

Drift velocity is defined as the average velocity with which free electron in a conductor gets drifted under the influence of an external electric field applied across the conductor.

By the formula for drift velocity-

V_d= (-eE)(tao)/m

where -e= charge

E=Electric field

Tao= average time(also known as relaxation time)

m= mass of electron

the negative sign shows the direction of drift velocity to the Electric field both are opposite to each other

Once the particle is moving in the drift direction, the magnetic field deflects it back against the external force, so that the average acceleration in the direction of the force is zero.

it opposes the relative motion of a magnet because it is the opposite to the direction of electric field and hence it generates magnetic field.

genius_generous answered 2 years ago

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