R L Steels & Energy Interview Questions, Process, and Tips

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

• Transformers are used to step up or step down voltage levels in power transmission and distribution systems.

• They work on the principle of electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF) in a coil.

• Transformers consist of two coils, a primary ...read more

A transistor is a semiconductor device used to amplify or switch electronic signals and power.

• Transistors are used in electronic devices such as radios, televisions, and computers.

• They come in two types: bipolar junction transistors (BJTs) and field-effect transistors (FETs).

• Transistors have three terminals: the emitter, base, and collector.

• They can be used as amplifiers by controlling the amount of current flowing thr...read more

A diode is an electronic component that allows current to flow in only one direction.

• It has two terminals, an anode and a cathode.

• It is commonly used in rectifiers, voltage regulators, and signal limiters.

• It can be made of silicon, germanium, or other materials.

• It has a forward voltage drop that varies depending on the material and construction.

• It can be used to convert AC to DC in power supplies.