A long straight wire is carrying current I in +z direction. The x – – McqOptions

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1.	A long straight wire is carrying current I in +z direction. The x – y plane contains a closed circular loop carrying current I2 and not encircling the straight wire. The force on the loop will be
A.	μ0l1l0/2π
B.	μ0l1l0/4π
C.	zero
D.	depends on the distance of the centre of the loop from the wire
Answer» E.

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