Question

Explain
(i) Fleming’s Left Hand Rule and
(ii) Right Hand Thumb Rule. For which physical quantities are they used for finding their directions?

Hint:

Fleming’s Left Hand Rule is used in motors, while the Right Hand Thumb Rule helps in understanding electromagnetism and solenoid fields.

Answer 1

- Fleming’s Left Hand Rule: This rule is used to determine the direction of force experienced by a current-carrying conductor in a magnetic field. It states that if the thumb, forefinger, and middle finger of the left hand are stretched perpendicular to each other:
- Forefinger represents the direction of the magnetic field.
- Middle finger represents the direction of current.
- Thumb represents the direction of force (motion).
- Right Hand Thumb Rule: This rule is used to determine the direction of the magnetic field around a current-carrying conductor. If the thumb of the right hand points in the direction of current, then the curled fingers represent the direction of the magnetic field.