Semiconductor Physics Interview Questions and Answers: 1. Why copper is a good conductor? Ans. In case of copper the electrons in the conduction band are very large. An electron in the conduction band experiences almost negligible…
Data Transmission System: A typical data transmission system contains the information source from which data has to be transmitted through a suitable medium to the destination, termed the information sink. The information source can be…
Capacitor-Start Capacitor-Run Single Phase Induction Motor: The capacitor-start capacitor-run motor is similar to capacitor-start, induction-run motor, except that the auxiliary winding and a capacitor remain connected in the circuit at all times. Of course, such…
Modular Programming in 8086 Microprocessor: Many programs are too large to be developed by one programmer. Such programs are developed by team of programmers. They divide a large program into smaller modules. Then each Modular…
Magnetic Type Potential Transformer: Magnetic Type Potential Transformer are the oldest devices for a.c, measurements. They are simple in construction and can be designed for any voltage. For very high voltages, cascading of the transformers…
Electronics Communication Engineering viva Questions and Answers: Following are the Basic and Advanced Electronics Communication Engineering viva Questions and Answers Acceptor atoms - Trivalent atoms that accept free electrons from pentavhalent atoms. AC coupling -…
Bandpass Analysis: There exist many practical situations in which multiple filtering and band pass analysis are required. In multiple filtering, one specific operation (for example low pass, high pass, band pass, etc.) is required to…
Directional Earth Fault Relay: In the case of Directional Earth Fault Relay the angular relationship of residual current and residual voltage is independent of the faulted phase and is governed only by the R/X ratio…
Power Factor Improvement: The low power factor is mainly due to the fact that most of the power loads are inductive and, therefore, take lagging currents. In order for Power Factor Improvement Methods, some device…
Distance Protection by Reactance Relays: Like impedance relays, Distance Protection by Reactance Relays are also amplitude comparators and thus require an additional directional unit. Although the performance of reactance relays on single-fed systems is not…
