An electric circuit (or network) is an interconnection of physical electrical devices such as an energy source (or sources), an energy convertor or convertors (load or loads), and conductors that connect them. An energy source (or source), such as a primary or secondary cell, a generator, and the like, is a device that converts chemical, mechanical, thermal or some other [...]
In a general way inductance can be characterized as that property of a circuit element (or component) by which energy is capable of being stored in a magnetic flux field. A significant and distinguishing feature of inductance, however, is that it makes itself felt in a circuit only when there is a varying current. Thus, although a circuit component may [...]
In a general way capacitance can be characterized as that property of circuit component (known as capacitor) in which energy is capable of being stored in an electric field. A significant and distinguishing feature of capacitance is that its influence in an electric circuit is manifested only when there exist a varying potential difference across the terminals of the circuit [...]
In this article we will discuss about:- 1. Introduction to Single Phase AC Circuit 2. Purely Resistive Circuit 3. Purely Inductive Circuit 4. Purely Capacitive Circuit 5. Resistance — Capacitance (R-C) Series Circuit 6. Apparent Power, True Power, Reactive Power and Power Factor. Contents: Introduction to Single Phase AC Circuit Purely Resistive Circuit Purely Inductive Circuit Purely Capacitive Circuit Resistance [...]
Poly-phase system costs more than single-phase system, but the former has many advantages over the latter. That is the reason for which at present over 90% of electrical energy used for commercial purposes is generated and transmitted in poly-phase. Some of the advantages of poly-phase system over single-phase working are as follows: (i) For a given size of frame, a [...]