A long insulated copper wire is closely wound as a spiral of N turns The spiral has inner radius a

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(#M40027779) IIT-JEE question 2011 question Keep an EYE

A long insulated copper wire is closely wound as a spiral of
‘N’ turns. The spiral has inner radius ‘a’ and outer radius ‘b’.
The spiral lies in the XY plane and a steady current ‘I’ flows
through the wire. The Z-component of the magnetic field at
the centre of the spiral is: Asked In IIT-JEE MAN (11 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Latest IIT-JEE Aptitude Question SOLUTION: A long insulated copper wire is closely wound as a spiral of ‘N’ turns. The spiral has inner radius ‘a’ and outer radius ‘b’. The spiral lies in the XY plane and a stea