Electrical terms defined

1.  Don’t fix a larger rated Fuse in a circuit which had been designed by the manufacturer.

 2. A switch can control the on and off operation of a circuit or direct the flow of current through different electric circuits.

 3. A normally open switch would not allow current flow when it is in its rest or in off position. A normally close switch would allow current flow when it is in its rest or in off position.

 4. An integrated circuit is a complex circuit made by transistors, resistors, diodes, capacitors, inductors and other electronic devices those are formed onto a small silicon wafer known as chip.

 5. When a positive voltage is applied to the N-material and negative voltage is applied to the P-material of a diode and, the diode is reverse biased. When a positive voltage is applied to the P-material and negative voltage is applied to the N-material of a diode, the diode is forward biased.

6. Transistor is used in electronic circuits as a very fast switching device.

 7. A diode is an electrical one-way check valve which would allow current flow in one direction and restrict the current flow in the reverse direction.

 8. Relay is an electromechanical device that uses low current to control a high current circuit.

 9. Potentiometer is a three wire variable resistor that functions like a voltage divider. Rheostat is a two terminal variable resistor that is used to regulate the strength of electrical current.

 10.  Thyristor or silicon controlled rectifier requires only a single triggering pulse applied to the gate to make it switch on.

A short circuit could result in a blown fuse.

A short circuit adds a parallel path to the original circuit, which decrease the entire circuit’s impedance.

A short circuit bypasses the circuit’s intended current path.

Circuit protection devices make the circuit open when short circuit occurs.