Magnetic Effects of Current and Magnetism: JEE Main 2004 Physics question

JEE Main 2004 · Annual, Paper 1 · Q7667

JEE Main 2004Annual, Paper 1PhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is

B.

It is then bent into a circular loop of

n

turns. The magnetic field at the center of the coil will be

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JEE Main 2004 Magnetic Effects of Current and Magnetism Question with Solution (Annual Paper 1, Q7667) | JEE Arc

JEE Main 2004 · Annual, Paper 1 · Q7667

JEE Main 2004Annual, Paper 1PhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is

B.

It is then bent into a circular loop of

n

turns. The magnetic field at the center of the coil will be