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Which one of the following is not correct about Lorentz Force?A. In presence of electric field `vecE(r)` ang magnetic field `vecB(r)` the force on a moving electric charge is `vecF=q[vecE(r)+vecvxx vecB(r)]`B. The force, due to magnetic field on a negative charge is opposite to that on a positive charge.C. The force due to magnetic field becomes zero if velocity and magnetic field are parallel or anti- parallel.D. For a static charge the magnetic force is maximum.

Answer» Correct Answer - D
If charge is not moving then the magnetic force is zero.
Since `vecF_(m)=q(vecv xxvecB)`
As, `vecv=0`, for stationary charge`" "therefore vecF_(m)=0`


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