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
AIPMT 1993, Easy
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(a) $\overrightarrow {{F_m}} = q\,(\overrightarrow {v\,} \times \overrightarrow B )$
When the angle between $\overrightarrow {v\,} $ and $\overrightarrow B \,is\, 180^o, F_m = 0$
When the angle between $\overrightarrow {v\,} $ and $\overrightarrow B \,is\, 180^o, F_m = 0$
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