Tellegen’s Theorem This theorem states that algebraic sum of the power’s in any circuit (linear, non-linear, unidirectional, bi-directional, time-invariant and time-variant elements) at any instant is zero. It was published in 1952 by Bernard Tellegen. For verification of Tellegen’s theorem, KVL and KCL equations are used. Tellegen’s theorem works based on the principle of the law of … Read more
Millman’s Theorem Case-1 The theorem states that if several ideal voltage sources V1, V2, V3,……., Vn in series with resistances R1, R2, R3,…….., Rn, are connected in parallel then the circuit may be replaced by a single voltage source Vout in series with the resistance Req. Let us consider a circuit having three sources i.e. n=3. … Read more
Nuclear power is the fifth -largest source of electricity in India after thermal, hydroelectric and renewable sources of electricity. 1. Gorakhpur Atomic Power Station (under construction) Operator: NPCIL Establishment Date: Location: Fatehabad, Haryana Reactor Units (MW): 4 x 700 MW Installed Capacity (MW): 2. Kaiga Nuclear Power Plant Operator: NPCIL Establishment Date: November 16, 2000 Location: Kaiga, Uttara Kannada, … Read more
In this article, we will compare different energy storage system in terms of their advantages & limitations. The comparison is given in the table. S.No. Energy Storage System Advantages Limitations 1 Li-ion battery 1. It has a high specific energy 2. Light Weight 3. High Cycle life 1. Costly 2. Need Battery Management System 3. … Read more
Thermal Power Station A thermal power station is a power plant in which the prime mover is steam driven. The operation of a thermal power station is such that the water is heated first, and turns into steam. This steam is used for rotating a steam turbine which drives an electrical generator. After passing through … Read more
Why don’t we use copper wire as a fuse wire Fuse is a Safety device which protects an electrical device from fault. Whenever there is a fault, a short circuit current will flow that leads to the generation of high heat. This heat will damage the electrical appliance if the circuit does not open in … Read more
Resistance box The box which contains the resistors which can cover a wide range of values for estimating and comparing the resistance is known as the resistance box. Features of Resistance box The accuracy of the resistance box is very high. The main application of the resistance box is to control the specific value of … Read more
A thermal conductivity gas analyzer is used to measure the chemical purity of a gas. The working of this type of analyzer is based on the difference in heat conductivity among gases. Fig. 1 shows the Basic thermal conductivity gas analyzer circuit. It is a Wheatstone bridge formed with two sensing resistors acting as balanced legs … Read more
The neutrons have the following property as they do not carry any charge. It is very difficult to detect neutrons. So, indirect methods are employed to detect neutrons. This consist of an arrangement where alpha or beta particles or gamma-rays are produced by colliding neutrons with a certain nuclear material. Indirect Method to detect Neutrons … Read more
A microphone is a transducer that converts sound into an electrical signal. In other words, a microphone is a special type of pressure transducer converting acoustic energy (pressure waves) into electrical energy. A microphone is nicknamed as mic or mike. The sensitive transducer element of a microphone is called its element or capsule. The sound is … Read more
