An electron enters an electric field with its velocity in the direction of the electric field line, then :-

the path of the electron will be a circle

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the path of the electron will be a parabola

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the velocity of the electron will decrease just after the entry

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the velocity of the electron will increase just after the entry

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Solution

The correct option is C the velocity of the electron will decrease just after the entry
The velocity of the electron will decrease just after the entry because electric field applies a force on electron in the direction opposite to it’s motion.

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A uniform magnetic field and a uniform electric field are produced pointed in the same direction. an electron is projected with its velocity in the same direction

(A) the electron will turn to its right

(B) the electron will turn to its left

D) the electrons velocity will decrease in magnitude

Ans given is option D

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An electron enters an electric field with its velocity in the direction of the electric field line, then :-

The correct option is C the velocity of the electron will decrease just after the entryThe velocity of the electron will decrease just after the entry because electric field applies a force on electron in the direction opposite to it’s motion.

The correct option is C the velocity of the electron will decrease just after the entry
The velocity of the electron will decrease just after the entry because electric field applies a force on electron in the direction opposite to it’s motion.