An electric charge +q moves with a velocity 3^i+4^j+^k in a electromagnetic field given by →E=3^i+^j+2^k, →B=^i+^j−3^k. The y-component of the force experienced by +q is
A
2q
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B
11q
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C
5q
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D
3q
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Solution
The correct option is B 11q →F=q→E×→V×→B =q(3^i+^j+2^k)+(3^i+4^j+^k)×(^i+^j−3^k) =q(−10^i+11^j+^k) F=11q