Multirange Ohmmeter: The Multirange Ohmmeter circuit shown in Fig. 4.28 (a) is only for a single range of resistance measurement. To measure resistance over a wide range of values, we need to extend the ohmmeter…
Signal Flow Graph of DC Motor in Electric Drive System: The Signal Flow Graph of DC Motor in Electric Drive System block diagram representation discussed above is adequate only for simple systems having components with…
Frequency Generating Transducer: Frequency Generating Transducer - Unlike variable parameter analog transducers, frequency and pulse generating transducers measure physical variables in terms of a pulse repetition rate. Since frequency is an analog quantity, these can…
Non Inverting Operational Amplifier: An amplifier which amplifies the input without producing any phase shift between input and output is called Noninverting Amplifier. The basic circuit diagram of a Non Inverting Operational Amplifier is shown…
Difference between Brushless DC permanent magnet motor and Conventional motor: The difference between Brushless DC permanent magnet motor and Conventional motor is given below 1. In the same frame, for same cooling, the brushless PM…
AC Distribution Interview Questions and Answers: 1. What is primary distribution system and what is normal operation voltage of primary distribution ? Ans. Primary distribution system is that part of the distribution system which operates…
Thyrite Lightning Arrester Diagram: Thyrite lightning arrester is most common and is mostly used for the protection against high dangerous voltages. It operates on the fact that thyrite, a dense inorganic compound of ceramic nature,…
Compound Semiconductor Materials: Most of the compound semiconductor materials are formed from the combinations of group III and group V elements. A portion of the periodic table listing the more common semiconductors is given in…
Percentage Reactance in Power System: The Percentage Reactance in Power System of generators, transformers, reactors etc. is usually expressed in percentage reactance to permit rapid short circuit calculations. The percentage reactance of a circuit is…
Condition for Symmetry in Two Port Network: If the impedance measured at one port is equal to the impedance measured at the other port with remaining port open circuited, the network is said to be…
