First slide

Motion of charged particle in uniform electric field

Question

An electron enters in an electric field with its velocity in the direction of the electric lines of force. Then

Easy

A

The path of the electron will be a circle.
B

The path of the electron will be a parabola
C

The velocity of the electron will decrease
D

The velocity of the electron will increase

Solution

Because electric field applies the force on electron in the direction opposite to its motion , so electron has retarding motion in the field

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