Physics for IGCSE & O level - Magnets And Currents (Section 9 - No. 7)
How can the strength of the turning effect in an electric motor be increased?
Increasing the number of turns on the coil.
Increasing the current.
Using a weaker magnet.
Increasing the area of the coil.
Explicação
The turning effect is proportional to the number of turns, the current, and the area of the coil and the strength of the magnetic field.