Physics for IGCSE & O level - Magnets And Currents (Section 10 - No. 32)
What will change if the direction of the coil's current is reversed?
The speed of the motor
The direction of the turning effect
The magnetic field strength
The current flow
Vysvětlení
Reversing the current flips the direction of the force on the coil, causing the motor to turn in the opposite direction.