A uniform electric field and a uniform magnetic field exist in a region in the same direction. An electron is projected with velocity pointed in the same direction the electron will
turn to its right
keep moving in the same dirction but its speed will decrease
turn to its left
keep moving in the same direction but its speed will increase
A
keep moving in the same direction but its speed will increase
B
turn to its right
C
turn to its left
D
keep moving in the same dirction but its speed will decrease
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Solution
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Force due to magnetic field =q(→V×→B) =qVBsin0(∵sin00=0) =0 as velocity and field has same direction.
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