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\underset{F}{\to} = q (\underset{v}{\to} \times \underset{B}{\to})

\underset{F}{\to} = q \underset{E}{\to}

\underset{F}{\to} = q (\underset{E}{\to} + \underset{V}{\to} \times \underset{B}{\to})

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ANS : 2

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