In Fleming's Right Hand Rule, what does the second finger indicate?

• A. Field direction
• B. Induced current
• C. Current direction
• D. Force direction

Answer: (B)

In Fleming's Right Hand Rule, the second finger represents the direction of the induced current. This rule is a mnemonic used in electrical engineering to determine the relationship between the magnetic field, current, and force in a conductor experiencing electromagnetic induction.

To apply the right-hand rule, you extend your thumb, first finger, and second finger of your right hand so that they are all perpendicular to each other. The first finger points in the direction of the magnetic field, the thumb indicates the direction of the force or movement (in a generator, for example), and the second finger shows the direction of the induced current that flows in the conductor as a result of the motion in the magnetic field.

Understanding this rule is essential for grasping how generators and motors operate, highlighting the interrelationship between electricity and magnetism in practical applications.