DC Motor

A DC motor is composed of a stator and a rotor. In many small motors, the stator is composed of magnets. Larger motors have windings.

Static electricity is static, since it is a current that is going nowhere. Both, DC and AC current flow in some direction, but static electricity does not.

Power is the speed at which work is done. Electric power is the multiplication of the current (amps) by the voltage (volts). P = I x V.

When a constant voltage is suddenly applied to an RL circuit, an increasing a current goes through the conductor and creates a magnetic field that expands with the increasing current

Norton’s Theorem The Norton’s Theorem is similar to the Thevenin’s Theorem. It can be seen that, the equivalent circuit is: A Voltage source (Thevenin voltage: Vth) in series with a resistor (Thevenin resistance: RTH) Thevenin equivalent circuit This theorem says that the equivalent Norton circuit is a combination of a current source in parallel with a resistor. It is easy to find the Norton equivalent circuit when we […]

The Thevenin’s theorem is used to convert a two terminal circuit, into a very simple circuit containing one voltage source in series with a single resistor