Explanation
Magnetic flux linked with the ring changes so current flows through it.
More rapid is the movement of bar magnet, more is the deflection observed in the galvanometer.
Conductor cuts the flux only when it moves in the direction of M.
This is the case of periodic EMI.
No flux change is talking place because magnetic field exists everywhere and is constant in time and space.
By Fleming's right hand rule.
Inductors obey the laws of parallel and series combination of resistors.
A choke coil is an electrical appliance used for controlling current in an ac circuit. In a choke coil R << XL to avoid power dissipation.
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