Answer the following with reference to the magnetic field produced by a circular…
PHYSICS · Subjective · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
Answer the following with reference to the magnetic field produced by a circular current loop.
(i) State the rule used to decide the direction of the magnetic field inside the loop.
(ii) Explain qualitatively how the magnitude of the magnetic field at the centre of the loop changes in each of the following situations, keeping all other factors unchanged:
(a) the current is doubled,
(b) the radius of the loop is halved,
(c) the number of turns is doubled.
(iii) Draw a neat sketch of the magnetic field line pattern in the vicinity of a single circular loop carrying current.