Q.

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

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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

answer is C.

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Detailed 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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