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If a charged particle goes unaccelerated in a region containing electric and magnetic fields,A. `vec(E)` must be parallel to `vec(B)`B. `vec(V)` must be perpendicular to Electric fieldC. `vec(V)` must be perpendicular to `vec(B)`D. E must be equal to to vB

Answer» Correct Answer - B
`qvec(E)=-(vec(V)xxvec(B))`
`rArr vec(E)=-(vec(V)xxvec(B))`
`rArr vec(E) bot vec(V) and vec(E) bot vec(B)`


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