AC Bridge

AC Bridges and Theory of AC Bridge

We use these bridges for measurement of inductances and capacitances in the most accurate manner. Principally, an AC Bridge is similar to the Wheatstone bridge. Like Wheatstone Bridge, it has also four arms. Instead of … Read more

Charles Wheatstone

Wheatstone Bridge Circuit Operation and Theory

We use this type of bridge for measuring medium range resistances. The Wheatstone Bridge measures an unknown resistance by comparing it with a known resistance. Charles Wheatstone developed this bridge circuit. Wheatstone Bridge Circuit Here, … Read more

Induction Type Watt Hour Meter

Induction Type Watt Hour Meter or Energy Meter

The electromechanical type energy meter, what we use in our domestic and industrial installation is single phase induction type watt hour meter. Although nowadays, the Electric Supply Companies, are replacing the conventional electromechanical type meters … Read more

repulsion type moving iron instrument

Repulsion Type Moving Iron Instrument

Construction Working Principle Deflecting Torque Construction of Repulsion Type Moving Iron Instrument One variation of moving iron instrument is repulsion type instrument. Here we keep the shaft of the moving system along the axis of … Read more

Deflecting Torque of Attraction Type Moving Iron Instrument

Attraction Type Moving Iron Instrument

Construction of Attraction Type Moving Iron Instrument There are two types of moving iron instrument. One is the attraction type moving iron instrument. Another is repulsion type moving iron instrument. We will discuss in this … Read more