The first type of motor built is still in widespread use In the late 1800s, several inventors built the first working motors, which used direct current (DC) power. After the invention of the induction ...

Learn about and revise electromagnetism, the motor effect and its applications in motors with GCSE Bitesize Physics.

They require current pulses delivered through a special digital interface -- something not needed for simpler alternating and direct current motors.

Many of the stalled trains failed because their motors run on direct current, or DC, power, which malfunctions easily in light, fluffy snow like the more than 40 inches that has blanketed Boston ...