Which statement correctly describes the right-hand thumb rule used to find the…
PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
Which statement correctly describes the right-hand thumb rule used to find the direction of magnetic field around a straight current-carrying conductor?
(a) When the middle finger points in the direction of current, the thumb shows the direction of force on the conductor.
(b) When the thumb points in the direction of magnetic field, the curled fingers indicate the direction of current.
(c) When the thumb points in the direction of current, the curled fingers indicate the direction of magnetic field lines.
(d) If the conductor is gripped with the left hand so that the thumb points along the current, the curled fingers give the direction of magnetic field lines.