A charge moving with velocity v in X - direction is subjected to a field of magnetic induction in the negative X direction. As a result the charge will
move along a helical path around X axis
remain unaffected
starts moving in a circular path
retard along X-axis
A
move along a helical path around X axis
B
remain unaffected
C
retard along X-axis
D
starts moving in a circular path
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Solution
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F=q(→V×→B) =qVBsin0 =qVBsin(1800)(∵ velocity is in X-direction and B is in -X-direction) =0(∵sin1800=0) So, charge will be more unaffected.
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