Catalog of Electrical Engineering questions with useful answers that help you develop a clear insight of your conceptual problems.
List of topics:
The term relates to the amount of energy contained in food or fuel. The amount of heat that can be generated by the complete combustion of a unit weight of fuel is known as its calorific value. The calorific value of a fuel indicates the amount of heat that is available from a fuel. The … Read more
Why presence of transformers in power system necessitates introduction of per-unit system? Answer: Due to the presence of transformers in power systems, many power system problems become tedious to solve using electrical units. Because the transformer turns ratio changes the electrical quantities of voltage, current, and impedance differently while moving from one voltage side to … Read more
What is a one-line diagram?The one-line diagram is used to convey important information about the power system. topological information about a power system. Most of the electrical power systems in practice are three-phase systems in which each of the three phases is very similar to each other. This similarity enables to show one of three … Read more
Light has long been used as a long-range signaling medium. While communication by light through open air is still possible using modern technology, it is far more practical in most cases to channel the light signals through a special strand of an optically transparent material called an optical fiber. When packaged in a protective sheath, … Read more
Question: Compare basic construction of synchronous motor and alternator Answer: In terms of construction synchronous motors are identical to salient pole synchronous generator (alternator). The stator of the motor has 3 phase winding, while the rotor has a set of salient poles. The rotor is usually excited by direct current. Slots in the synchronous motor … Read more
Switchgear Questions with Answers What is a fuse A fuse is a short piece of metal that is inserted in the circuit, which melts when excessive current flows through it thus breaking the circuit. What is a circuit breaker A circuit breaker is a protection element which can make or break a circuit either manually … Read more
Question: What is the bandwidth of the circuit OR What do you mean by bandwidth of circuit? Answer: Bandwidth or BW of the resonant circuit is defined as the difference between the frequencies at which the circuit delivers half of the maximum power. Consider the figure below: The graph is the power response of a … Read more
Induction Motor Questions Part 1 With brief explanator answers What Is An Induction Motor An induction motor sometimes short known as IM is a type of asynchronous AC motor in which electric power is supplied to the rotating device by means of electromagnetic induction. Why air gap between stator and rotor of 3 phase induction … Read more
Electrical Engineering Questions with brief explanatory answers. What is a resistor and what is the basic function of a resistor? The resistor is an electrical component whose function is to provide resistance. It is used in circuits to limit current and to divide voltage. Does Ohm’s law hold correct for all type of conductors No, … Read more
An induction motor is one of the most popular motors in the industry. Its simple construction makes it one of the most useful motors that finds its applications in our homes as well as in industries. Given below are the top 10 Induction Motor Questions. Describe the Basic Construction of an Induction Motor An induction … Read more