. An electric motor works on the principle
A: of electromagnetic induction
B: when a rectangular coil is placed in a magnetic field and current is passed through it, a force acts on the coil which rotates it continuously.
C: both A and B
D: None of the above
In an electric motor the electrical energy is converted into the mechanical energy.
And the motor used the magnetic effect of the current.
It is saying that when a rectangular coil is placed in a magnetic field and current is passing through it then a force is exerted in the coil which rotates the coil.
The option(B) is correct.