Synchronous machines are principally used as alternating current (AC) generators. They supply the electric power used by all sectors of…

Fig. (3.6) shows the voltage build up in a series generator. Here R1, R2 etc. represent the total circuit resistance…

Voltage build up in a shunt generator depends upon field circuit resistance. If the field circuit resistance is R1 (line…

The following are the three most important characteristics of a dc generator: 1. Open Circuit Characteristic (O.C.C.) This curve shows…

As in the case of generators motors may also be required to operate in parallel driving a common load. The…

In the case of series operation the motors shafts of the two machines are connected to the same load and…

The negative charge of the electron is equal, but opposite to, the positive charge of the proton. These charges are…

A thermionic energy converter is a device consisting of two electrodes placed near one another in a vacuum. One electrode…

Light is a form of energy and is considered by many scientists to consist of small particles of energy called…

Some materials readily give up their electrons and others readily accept electrons. For example, when two dissimilar metals like copper…