To use your left hand to determine the direction of the voltage developed in a moving conductor in a

stationary magnetic field, you must point your

Athumb in the direction of the electromagnetic force.
Bforefinger in the direction of the motion.
Cforefinger in the direction of the lines of force.
Dthumb in the direction of the magnetic flux.

Verified Answer :

To use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your forefinger in the direction of the lines of force. The correct option among all the options given in the question is option "C".

Correct answer choice is:

C. forefinger in the direction of the lines of force.

Explanation:

The direction of the force - and consequently the transfer of the wire - can be defined by applying Fleming’s left-hand rule.

The forefinger tends to the direction of the magnetic field. The middle finger points in the course of the current. The thumb supplies the direction of force or movement working on the conductor. Fleming's Left Hand Rule is applied in electronic engines which are utilized in coolers, appliances, printers, etc.