Two wires A and B have the same length L and carry equal currents I. Wire A is bent into a circle and wire B is bent into a square. (a) Obtain expression for the magnitude of the magnetic field at (i) the centre of the circular loop and (ii) the centre of the square. Which wire produces a greater magnetic field at the centre?
Two wires A and B have the same length L and carry equal currents I. Wire A is bent into a circle and wire B is bent into a square. (a) Obtain expression for the magnitude of the magnetic field at (i) the centre of the circular loop and (ii) the centre of the square. Which wire produces a greater magnetic field at the centre?
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Transcribed Image Text:Two wires A and B have the same length L and carry
equal currents I. Wire A is bent into a circle and wire
B is bent into a square. (a) Obtain expression for the
magnitude of the magnetic field at (i) the centre of the
circular loop and (ii) the centre of the square. Which
wire produces a greater magnetic field at the centre?
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