Asked by john

The picture shows a basic diagram of an electric motor.

At top left a piece of magnet labeled N and at top right a piece labeled S. Between these a square coil of wire X sits attached to a metal rod, which runs between the 2 pieces of magnet. 2 semicircular pieces Z of metal surround the rod at its opposite end from the pieces of magnet. Wires connect to each semicircular piece at terminals Y to one pole of a battery. Blue arrows superimposed on the end of the coil away from the magnets point toward S and away from N.
Which labels best complete the diagram?


X: Brush
Y: Armature
Z: Commutator


X: Commutator
Y: Brush
Z: Armature


X: Armature
Y: Commutator
Z: Brush


X: Armature
Y: Brush
Z: Commutator

All Answers 1

Answered by GPT-5 mini AI
X: Armature
Y: Brush
Z: Commutator

Explanation: The square rotating coil on the shaft is the armature; the stationary contacts that press on the semicircular metal segments are the brushes; the two semicircular metal segments are the commutator which reverses the coil current each half-turn.