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10. The magnetic force on a moving charge q' withvelocity v in magnetic field B is given by,F q (v x B). If the angle between v and B is60°, then the value of F v(1) can't be calculated because of insufficient data.(2) are qv'B sin 0.(3) are zero(4) are qvB cos θ.

Answer»

Yes option 2). is correct because we just need to multiply both sides by dot product of v.



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