Electrical Help at Your Fingertips

Ohm’s law is used to calculate the current in a circuit.
For example, if you know the voltage and resistance of a circuit, you can use Ohm’s law to calculate the current. Read more..

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Read more..

An AFCI is a type of circuit breaker that is designed to protect against electrical fires caused by arcing faults. Read more..

generators transform mechanical energy into electrical energy. The mechanism involved is similar to that of an alternator.. Read more..