An electron enters a magnetic field whose direction is perpendicular to the velocity of the electron. Then
A
The speed of the electron will increase
B
The speed of the electron will decrease
C
The speed of the electron will remain the same
D
The velocity of the electron will remain the same
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C
The speed of the electron will remain the same
c (c) Force acts perpendicular to the velocity in a magnetic field, so speed of electron will remain same.
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