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Thursday, July 18, 2013
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History of ammeter?
An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes (A), henc...
FDM Means and block diagram
ANS: frequency-division multiplexing ( FDM ) is a technique by which the total bandwidth available in a communication medium is divided in...
Different types of short circuit fault
Short circuit fault mainly two types: 1.symmetrical fault 2.unsymmetrical fault symmetrical fault agai...
What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?
ANS: The difference between the electronic and ordinary electrical regulator is that in electronic regulator power losses are less becau...
Why we use a capacitor in an electric fan?
Answer: 1. Capacitor is used for both starting the electric fan and improving power factor. 2. The voltage taken by the fan during...
ADVANTAGES OF BLUETOOTH TECHNOLOGY
1. No line of site restrictions as with IrDA. 2. Low power consumption makes integrated in battery powered devices very practical. 3. GHz ...
what is meant by electrical transients?
electrical transients An electrical transient is a temporary excess of voltage and/or current in an electrical circuit which has been ...
What is the difference between delta-delta, delta-star transformer?
Ans : Delta-delta transformer is used at generating station or a receiving station for Change of Voltage (i,e) generally it is used wher...
WHAT IS ELECTRICITY?
ANS: Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center,...
design of electrical power systems
In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such a...
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AC motor
Why we use a capacitor in an electric fan?
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Semi Conductor Switching Elements
Define stepper motor and What is the use of steppe...
What do you mean by substation?
What is the difference between delta-delta, delta-...
► The three-phase induction motor:
How Capacitors Work
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