2020 · Q3
Which one of the following statements regarding Fleming՚s Rule is correct?
general-sciencephysics-light-electricity
- AFleming's left hand rule gives direction of force on a current carrying conductor in a magnetic field
- BFleming's right hand rule gives direction of force on a current carrying conductor in a magnetic field
- CBoth the left-hand and right-hand rule can be used for finding direction of force on a current-carrying conductor in a magnetic field
- DFleming's rules has nothing to do with magnetic field
Explanation
Fleming's left-hand rule (the motor rule) gives the direction of the force on a current-carrying conductor placed in a magnetic field: forefinger for field, middle finger for current, thumb for force. Fleming's right-hand rule (the generator rule) instead gives the direction of induced current when a conductor moves through a field. So B and C swap the two rules, and D is false since both rules are about magnetic fields.