What is the Principle of DC Motor1. Principle : It works on the principle of motion of a current carrying conductor in a magnetic field, according to Fleming’s Left Hand Rule. It is a device which converts electrical energy into mechanical energy of rota…

What is alternating current and direct current?A direct current flows in one direction only in a circuit.The magnitude Of a direct current may be (a) constant (b) changes with timeFigure shows the graph of current against time for some direct currents. A…