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A Conductor (shown in the figure) carrying constant current I is kept in...

A Conductor (shown in the figure) carrying constant current II is kept in the xx - yy plane in a uniform magnetic field BB . If FF is the magnitude of the total magnetic force acting on the conductor, then the correct statement(s) is (are)

If BB is along ˆzˆz , F(L+R)F(L+R)
If BB is along ˆxˆx , F=0F=0
If BB is along ˆyˆy , F(L+R)F(L+R)
If BB is along ˆzˆz , F=0F=0
Solution:
F=I (Displacement)×BF=I (−−−−−−−−−Displacement)×B
As magnetic field is uniform
F=I(2L+2R)ˆi×BF=I(2L+2R)ˆi×B
When BB is along yy or zz axis
F(L+R)F(L+R)
When BB is along xx -axis
F=0F=0