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A uniform electric field and a uniform m...

A uniform electric field and a uniform magneitc field exist in a region in the same direction An electron is projected with velocity pointed in the same direction the electron will

A

turn to its right

B

turn to its left

C

keep moving in the same direction but its speed will increase

D

keep moving in the same direction but its speed will decrease

Text Solution

Verified by Experts

The correct Answer is:
D
No magnetic force acts on the electron and force due to electric field will act opposite to its initial direction of motion. Hence its velocity decreases in magnitude .
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Knowledge Check

  • A uniform electric field and a uniform magnetic field exist in a region in the same direction. An electron is projected with a velocity pointed I the same direction. Then the electron will:

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