Respuesta :

The problem is most likely that the commutator brushes bounces as the motor shaft rotates.

What is a DC motor?

This is referred to a device which converts direct current electrical energy into mechanical energy.

if the commutator brushes bounces as the motor shaft rotates over different materials, the ticking sound is heard.

Read more about DC motor here https://brainly.com/question/15721280

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