Exicom Interview Questions, Process, and Tips

Electronics is the branch of physics and engineering that deals with the behavior and effects of electrons and with electronic devices.

• Electronics involves the study of electronic components such as diodes, transistors, and integrated circuits.

• It also involves the design and development of electronic circuits and systems for various applications.

• Electronics has a wide range of applications including telecommunications,...read more

Rectifier converts AC to DC. Half wave, full wave and bridge rectifiers are commonly used.

• Rectifier is an electronic device that converts AC to DC.

• Half wave rectifier uses only one diode to convert AC to DC.

• Full wave rectifier uses two diodes to convert AC to DC.

• Bridge rectifier uses four diodes to convert AC to DC.

• Wheatstone bridge rectifier is a modified form of bridge rectifier.

• Circuit diagrams for all three types o

Transistor is a semiconductor device used for amplification and switching of electronic signals.

• Transistor has three layers of semiconductor material - emitter, base, and collector.

• It works by controlling the flow of current between the collector and emitter using the base.

• NPN transistor has a P-type base sandwiched between two N-type layers.

• Symbol of NPN transistor has an arrow pointing outwards from the base.

• Transist...read more

Oscillator generates an AC signal of a specific frequency. Types include RC, LC, crystal, and relaxation oscillators.

• An oscillator is an electronic circuit that generates a periodic AC signal.

• RC oscillator uses a resistor and capacitor to control the frequency.

• LC oscillator uses an inductor and capacitor to control the frequency.

• Crystal oscillator uses a quartz crystal to generate a precise frequency.

• Relaxation oscilla...read more