question_answer

  A coil made of insulated copper wire is connected to a galvanometer. What will happen to the deflection of the galvanometer if this coil is moved towards a stationary bar magnet and then moved away from it? Give reason for your answer and name the phenomenon involved.

Answer:

                  (a) More the radius weaker the field. (b) Field strength is directly proportional to the number of turns in the coil.