Two wires A and B have the same length equal to 44 cm. and carry a current of 10A each. Wire A is bent into a bent into a circle and wire B is bent into a square.
(a) Which wire produces a greater magnetic field at the centre.
(b) Obtain the magnitudes of the fields at the centres of the two wires.
Here, I = 10A, length of each wire = 44cm.
(a) Thus, the magnetic field due to a square will be more than that due to a circle of same perimeter.
