The rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field is:
- ARight-Hand Thumb Rule.
- BFleming’s Left-Hand Rule.
- CFleming’s Right-Hand Rule.
- DHund’s Rule.
Explanation
When a coil rotates in a magnetic field, the direction of the induced current is given by Fleming's Right-Hand Rule: the thumb points in the direction of motion of the conductor, the forefinger along the magnetic field, and the middle finger gives the direction of the induced current. Fleming's Left-Hand Rule is the 'motor rule' — it gives the direction of force on a current-carrying conductor, not the induced current. The Right-Hand Thumb Rule (Maxwell's corkscrew rule) gives the direction of the magnetic field around a straight current-carrying wire. Hund's rule concerns the filling of electrons in atomic orbitals and is unrelated to electromagnetic induction.