The coils in two electric motors are identical in size, but motor 1 is observed to spin more quickly than motor 2.
Three suggestions are made to explain this observation.
The current in the coil of motor 1 is greater than the current in the coil of motor 2.
The number of turns on the coil of motor 1 is greater than on the coil of motor 2.
The magnets in motor 1 are stronger than the magnets in motor 2.
Which suggestions give a possible explanation for this observation?
1 only
1 and 3 only
2 and 3 only
1, 2 and 3
