(a) State the rule used to predict the direction of the magnetic field produced by a…
PHYSICS · Subjective · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
(a) State the rule used to predict the direction of the magnetic field produced by a long, straight current-carrying conductor.
(b) Draw a neat labelled sketch showing the pattern of magnetic field lines around a vertical conductor when the current flows upward.
(c) Using the idea of magnetic field-line density, explain qualitatively why the magnitude of the magnetic field decreases as the distance from the conductor increases.