Motor contactors

What is Contactor ?

To start up and shut down a three-phase AC induction motor, any three-pole switch with a suitable current rating will

What is Oscilloscope

What is Cathode Ray oscilloscope ?

In studying the various electronic, electrical networks and systems, signals which are functions of time, are often encountered. Such signals

How to Test a Transistor

How to Test a Transistor ?

An individual transistor can be tested either in-circuit or out-of-circuit with a transistor tester. For example, let’s say that an amplifier