electricalengineeringquestionanswer

Electrical Circuit Theorems: To solve problems in electrical networks, there are number circuit theorems have been developed like (1) Kirchhoff's laws (2) Superposition theorem (3) Thevenin theorem (4) Norton Theorem (5) The maximum power transfer theorem In this post we have listed all these theorems. We believe that this post will serve as a ready reference for you. Kirchhoff's laws: (a) Current Law:  At any junction in an electric circuit the total current flowing towards that junction is equal to the total current flowing away from the junction, i.e. I =0 (b) Voltage Law:  In any closed loop in a network, the algebraic sum of the voltage drops (i.e.products of current and resistance) taken around the loop is equal to the resultant e.m.f. acting in that loop. Superposition Theorem: In any network made up of linear resistances and containing more than one source of EMF, the resultant current flowing in any branch is the algebraic sum of the currents that would flow in that ...

Basic Electrical Engineering Interview Questions Answers 1 [Q] Define Power and Energy? The rate at which work is done in an electric circuit is known as Electric power. Power = Voltage X Current The basic unit for electric power is Watts The instrument used to measure the power is known as watt meter. The total amount of work done in an electric circuit is called as electric energy.  Energy = Power X Time the basic unit is Joule or watt-sec The practical unit is Kilo watt-hour The instrument used to measure the energy is known as Energy meter. [ Like this you have to explain elaborately in the interviews. The interviewer will expect detailed answer from the candidate. If he feels that you are deviating too much, then he will stop you and ask another question. Please don't answer in one line. Add related points where ever possible] [Q] In our house are we monitoring/measuring power or energy? Energy. It is done by energy meter. [Q] what is meant by cycle in ac waveform? what i...