why the different coils run at different speeds on DC motorS

why the different coils run at different speeds on DC motor

Solution

different coils run at different speeds means that a large current flows through the motor, giving a large torque. This high electromagnetic torque produces motor speed, strong enough to lift heavy load overcoming its initial inertia of rest. And for this particular reason the motor becomes extremely essential as starter motors for most industrial applications dealing in heavy mechanical load like huge cranes or large metal chunks etc. for a DC motor, Torque and speed are said to be inversely proportional. The speed of the motor is going to be determined by the load on the motor shaft. so, different coils exhibits different speeds