N.s.u Interview Questions and Answers

SCR stands for Silicon Controlled Rectifier. It is a semiconductor device used for power control.

• SCR is a type of thyristor used for switching and controlling high power AC and DC circuits.

• It has three terminals - anode, cathode, and gate.

• SCR is used in various applications such as motor control, lighting control, heating control, and power supplies.

• It is also used in welding machines, battery chargers, and voltage regulators.

• SCR is preferred over other devices due to its hig...read more

PLC stands for Programmable Logic Controller. It is an industrial computer used to automate processes.

• PLCs are used in manufacturing and industrial automation to control machinery and processes

• They are programmed using ladder logic or other programming languages

• PLCs can be used for a variety of applications such as controlling traffic lights, assembly lines, and HVAC systems

• They are designed to be rugged and reliable in harsh industrial environments

Gauss Law relates the electric flux through a closed surface to the charge enclosed within the surface.

• Gauss Law is a fundamental law of electromagnetism.

• It states that the electric flux through a closed surface is proportional to the charge enclosed within the surface.

• The law is useful in calculating electric fields in symmetric situations.

• It is often used to calculate the electric field due to a point charge or a charged sphere.

• Gauss Law is one of the four Maxwell's equatio...read more