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Electronic Devices & Circuits

Types of Resistors

S Bharadwaj Reddy
A very basic component that all the engineers including instrumentation discipline should know about. A resistor is a passive component. It introduces resistance. Resistance is defined as the property of

Freewheeling Diode Working Principle

S Bharadwaj Reddy
A Freewheeling diode also called as flyback diode.  The freewheeling diode also called as snubber diode, commutating diode, freewheeling diode, suppressor diode, suppression diode, clamp diode, or catch diode. Its main

Permanent Magnet Moving Coil Instruments (PMMC)

S Bharadwaj Reddy
The permanent magnet moving coil instruments are most accurate type for direct current measurements. The action of these instruments is based on the motoring principle. When a current carrying coil

Electron Gun of Cathode Ray Tube

S Bharadwaj Reddy
This post is the continuation of the previous post on cathode ray tube. The electron gun section of the cathode ray tube provides a sharply focused electron beam directed towards the

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