Question

Label the four parts of electric motor and write two uses of DC motor.

Answer 1

A. An electric current in a magnetic field will experience a force.

B. If the current carrying wire bent into a loop, then the two sides of the loop which are at right angles to the magnetic field will experience forces in opposite direction.

C. The pair of forces creates a turning influence or torque to rotate the coil.

D. Practical motors have several loops on an armature to provide a more uniform torque and the magnetic field is produced by an elctrmagnetic arrangement called the field coils.