Questions
A current carrying square loop ABCD is placed at a distance a from on infinitely long current carrying long straight conductor PQ as shown in the figure. The conductor PQ lies in the plane of the loop. Then
a
magnetic potential energy stored in the system is zero.
b
the square loop experiences a net torque.
c
the loop experiences a net force towards the conductor PQ.
d
the loop experiences a net force away from PQ.
detailed solution
Correct option is C
F→DA=F→BCF→AB=i AB→×B→1FAB=i×a×μoI2πaF→CD=i CD→×B→2=i×a×μoI2π2a∴FAb>FCDTalk to our academic expert!
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