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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