| The speed of a direct-current motor is determined by both | | |
| As the load is increased, the speed decreases to allow current to be drawn so the necessary electrical | | |
| When the motor stalls, it is exerting | | |
| If voltage is applied to a series motor without | | |
| When a loaded series motor is rotating with the maximum voltage applied to it, the current just produces the required amount of force with | | |
| If the field is weakened by reducing the current in it the motor must | | |
| A large direct-current motor must not be started by applying the full voltage across it while it is at rest, especially | | |
