(i) Starting from the fundamental expression for the magnetic field due to a current…
PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
(i) Starting from the fundamental expression for the magnetic field due to a current element, obtain an expression for the magnitude of the magnetic field at a point situated at a perpendicular distance r from an infinitely long straight conductor carrying a steady current I.
(ii) Draw the pattern of magnetic field lines produced by such a conductor and indicate clearly their directions.
(iii) Using the expression obtained in part (i), evaluate the magnetic field at a distance of 2.5cm from a wire carrying a current of 10A.