For approximately the same speed of moving the magnet into or out of the 15-turn coil, what happens to the deflection of the galvanometer pointer as the number of bar magnets (strength of magnetic field) increase?
For approximately the same speed of moving the magnet either into or out
of the 15-turn coil, the galvanometer pointer deflect more with the use of two
magnets compared to a single source of magnetic field.