PQRS is a square loop made of uniform conducting wire. If the current enters the loop at P and leaves at S, then the magnetic field will be

Engineering

Physics

Biot Savart Law

Amperes Circuital Law and its Applications

Magnetic Moment

Question

PQRS is a square loop made of uniform conducting wire. If the current enters the loop at P and leaves at S, then the magnetic field will be

Zero at the centre of loop

Zero at all points outside of the loop

Maximum at the centre of the loop

Zero at all points inside the loop

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Since, current does note form closed loop.

Hence, B = 0.