A loop of flexible conducting wire of length \[l\] lies in magnetic fi – McqOptions

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1.	A loop of flexible conducting wire of length \[l\] lies in magnetic field B which is normal to the plane of loop. A current is passed through the loop. The tension I developed in the wire to open up is
A.	\[\frac{\pi }{2}BIl\]
B.	\[\frac{BIl}{2}\]
C.	\[\frac{BIl}{2\pi }\]
D.	\[BIl\]
Answer» D. \[BIl\]

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