Physics for IGCSE & O level - Magnets And Currents (Section 9 - No. 11)
Which of the following increases the turning effect on the coil in an electric motor?
Increasing the number of turns.
Using a stronger magnet.
Increasing the current.
Using a weaker magnet.
คำอธิบาย
All the mentioned parameters are directly proportional to the turning effect on the coil.