Question

what is the difference between fleming left hand rule and fleming right hand  rule

Answer 1

1) Fleming's left hand rule is used to find the direction of magnetic force acting on a charged particle moving in a magnetic field, or a current carrying conductor kept in a magnetic field. 
2) Fleming's right hand rule is used to find the induced current in a coil encountering a change in a magnetic flux with time. 

Answer 2

Answer:

Fleming's left-hand rule is used for electric motors, while Fleming's right-hand rule is used for electric generators. ... Since neither the direction of motion nor the direction of the magnetic field (inside the motor/generator) has changed, the direction of the electric current in the motor/generator has reversed.