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DC Meter

DC Meter: The most commonly used dc meter is based on the fundamental principle of the motor. The motor action is produced by the flow of a small amount of…

DC Electric Field Strength Meter

DC Electric Field Strength Meter: The DC Electric Field Strength Meter strength E can be measured by using (i) variable capacitor probe or generating voltmeter or (ii) a vibrating plate…

DC Standard Differential Voltmeter

DC Standard Differential Voltmeter: A basic DC Standard Differential Voltmeter can be operated in different modes. The three basic modes of operation are as a dc voltage standard, as a…

Chopper type DC Amplifier Voltmeter (Microvoltmeter)

Chopper type DC Amplifier Voltmeter (Microvoltmeter): Chopper type DC Amplifier Voltmeter the dc input voltage is converted into an ac voltage, amplified by an ac amplifier and then converted back…

DC Ammeter

DC Ammeter: DC Ammeter - The PMMC galvanometer constitutes the basic movement of a dc ammeter. Since the coil winding of a basic movement is small and light, it can…

Systems of Track Electrification DC Electrification System

Systems of Track Electrification DC Electrification System: The substations are necessary for control of electric supply to a considerably long network in systems of track electrification DC electrification system. DC…

Basic DC Circuit Analysis Interview Questions and Answers

Basic DC Circuit Analysis Interview Questions and Answers: 1. Define Electric current. Ans. Electric current is defined as the rate of flow of electric charge. Where q is the charge is…

Parameters of JFET

Parameters of JFET: JFET has certain parameters which determine the performance. Such Parameters of JFET are (i) ac drain resistance, (ii) transconductance, (iii) amplification factor, and (iv) dc drain resistance,…

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