Name and state the rule to find the direction of: a) current induced in a coil due to its rotation in a magnetic field b) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.

Answer:

a) Fleming’s right-hand rule: The thumb, forefinger, and middle finger of the right hand are parallel. The thumb indicates conductor velocity, the forefinger the magnetic field, and the middle finger the induced current.

b) Fleming’s left-hand rule: In the left hand, the forefinger, middle finger, and thumb are held at right angles. The thumb shows the force exerted on the conductor, the forefinger the magnetic field, and the middle finger the current.