single phase energy meter
Single Phase Induction Type Energy Meter

Single Phase Induction Type Energy Meter Single phase energy meter are used for measurement for electrical energy in AC circuit. Energy meter is an integrating instrument which measures the total quantity…

MOSFET | Working Principle | V-I Characteristics & Applications
MOSFET | Working Principle | V-I Characteristics & Applications

MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device that is widely used for switching purposes and for the amplification of electronic signals in electronic devices. MOSFET…

frequency meter
Electrical Resonance type Frequency Meter

Frequency Meter These are used to measure supply frequency. These are used at generating stations & substations. A frequency meter is an instrument that displays the frequency of a periodic electrical…

Hot Wire Instrument
Hot Wire Instrument | Construction & Working

Hot Wire Instrument The instruments which use the heating of the current for knowing their magnitude such type of instrument is known as the hot wire instrument. It work on…

PMMC
PMMC Instrument || Construction & Working || Advantages & Disadvantages

PMMC A permanent magnet moving coil instrument can measure DC voltage & current. The working principle of these instrument is the same as that of the D' Arsonval type of…

Bipolar Junction Transistor (BJT)
Bipolar Junction Transistor (BJT)

Bipolar Junction Transistor A bipolar junction transistor is a three terminal semiconductor device consists of two P-N junctions which are able to amplify a signal. It is a current controlled…

Explain Construction and Working of Autotransformer
Explain Construction and Working of Autotransformer

Autotransformer An autotransformer is a type of electrical transformer with only one winding. In an autotransformer, one single winding is used as primary winding as well as secondary winding. In…

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