HOW THE DC MOTOR WORKS

Task: MAKE DC MORTOT RUN

  1. Connect the DC motor to the battery and make it run.
  2. You can try different combinations to connect the terminals of the motor like:
    • + and -
    • - and +
    • - and -
    • + and +.

DC motor connection.

Questions:

  1. In which direction the motor's shaft spins in different situations?
  2. In which direction the electric current flow?
  3. Why does motor not spinning when both connectors are connected to + terminal of the battery?

Summary

The rotation of the DC motor depends on the direction of electric current.

Issues

When I connect the DC motor to + and - terminals of the battery the motor's shaft does not spin.

Check the voltage of the battery… battery may be discharged.
Check the connectors of the motor… may be bad.