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write in vector form the mathematical expressio for force expierenced by a point electric charge “q” moving with velocity v in a uniform magnetic field b.under what conditions is this force (a) maximum and (b) minimum
Dear student For a point electric charge,F=q(V(vector) × B(vector)).orF=qVBsin theta. (scalar)When sin theta is 1, force is maximum.F=qVB.When sin theta is 0. force minimum=0.Work done by this force = Increase in Kinetic energy w = F.ds = Fs Cos90 w=0 Hence increase in KE is zero.
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