An electron moves on a straight line path XY | vedclass

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Question

(D) As the electron moves from $X$ to $Y$,it creates a magnetic field. According to the right-hand rule,the magnetic field lines pass through the coil

Vedclass · Accepted Answer

The current will reverse its direction as the electron goes past the coil.

Vedclass · Answer

(D) As the electron moves from $X$ to $Y$,it creates a magnetic field. According to the right-hand rule,the magnetic field lines pass through the coil $abcd$ in a direction perpendicular to the plane of the coil (into the page).As the electron approaches the coil,the magnetic flux linked with the coil increases. According to Lenz's Law,the induced current will oppose this increase by creating a magnetic field in the opposite direction (out of the page),which corresponds to an anticlockwise direction $(adcb)$.As the electron moves away from the coil,the magnetic flux linked with the coil decreases. The induced current will now oppose this decrease by creating a magnetic field in the same direction as the original field (into the page),which corresponds to a clockwise direction $(abcd)$.Therefore,the current will reverse its direction as the electron goes past the coil.

An electron moves on a straight line path $XY$ as shown. The $abcd$ is a coil adjacent to the path of the electron. What will be the direction of current,if any,induced in the coil?

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