Deepakkumar Yadav
ELECTRICAL MCQ A Shunt generator running at 1000 rpm has generated emf of 100 V. If the speed increases to 1200 rpm, the generated emf will be nearly 120 V 140 V 175 V 240 V Answer From When other thing remains constant. E2 = 120 V Correct Answer is 120V.
The unit of resistivity is Ω. Ω – metre. Ω / metre. Ω / m². Answer is The unit of resistivity is Ω – metre.
Series Circuit Figure (A) series circuit. The same current flows through all the resistors. An electric circuit can be arranged in several ways, as long as the path for the electric current is closed. The simplest arrangement is the so-called series circuit. The series circuit has all the elements of the circuit connected onto each … Read more
What are the reasons for electric shocks? The human failure in handling the electrical components or repairing the distribution system without switching off the supply, the ultimate effect of electric shock on human body may be death. Electric shock on human body may be fatal but it may be due to Electric shock may result … Read more
Introduction of Induction Motor The most basic feature of an Induction motor is its self starting mechanism. Due to the rotating magnetic field, an emf is induced in the rotor, because of which current starts flowing in the rotor. As per the Lenz law, the rotor will start rotating in a direction so as to … Read more
Function of Wattmeter We have to measure electric power to know how much power any device or apparatus is drawing from the line. A wattmeter registers watts or kilowatts, and by reading it one can tell how much power any piece of apparatus is consuming. The amount of electric power delivered by a circuit depends on … Read more
Classification of amplifiers An amplifier is an electronic circuit which is used to amplify or increase the level of weak input signals into very high output signals. Transistors are used as amplifiers in most circuits. In addition, resistors, capacitors and a biasing battery are required to form complete amplifier circuits. Almost all electronic systems work … Read more
Introduction and Definition of Extra High Voltage During the past decades the demand of electricity has been increasing at a tremendous rate throughout the world. which has also results into increasing generation and transmission capacity of electrical energy. This increasing need of transmitting greater and greater amounts of power has led to a continuous increase … Read more
Comparison of Core Type and Shell Type Transformer Q. Difference between core type and shell type transformer. Sr. No. Core Type Shell Type 1. Figure (A) In this type, the windings enclose the whole core. Figure (B) In this type, the core encloses the windings. 2. Average length of the core is more. Average length … Read more
Constructional Details of Transformer (Single Phase) The transformer has two windings primary and secondary. These windings are made of enamelled copper. These windings are suitably put on the limbs of the transformer core. A suitable insulation is used for the former on which the windings are put. The transformer core is made of silicon steel … Read more