A single circular loop of radius carries a current of in the clockwise direction when…
PHYSICS · Multi-part · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
A single circular loop of radius 10cm carries a current of 4A in the clockwise direction when viewed from point P situated on one side of the loop along its axis.
(i) Calculate the magnitude of the magnetic field at the centre of the loop.
(ii) Which face of the loop will act as the north pole when observed from point P? Give a reason for your answer.
(iii) If the direction of the current is reversed while keeping its magnitude unchanged, state how your answers to parts (i) and (ii) will change. Justify each statement.