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Types of Energy Sources

Types of Energy Sources: There are basically two Types of Energy Sources ; voltage source and current source. These are classified as i) Ideal source and ii) Practical source. Let…

Choice of Electrical Drives: Choice of Electrical Drives depends on a number of factors. Some of the important factors are: Steady state operation requirements: Nature of speed torque characteristics, speed…

Reverse Bias PN Junction

Reverse Bias PN Junction: When an external bias voltage is applied to a pn-junction, positive to the n-side and negative to the pride, electrons from the n-side are attracted to…

PN Junction Semiconductor

PN Junction Semiconductor: Two blocks of PN Junction Semiconductor material are represented in Fig. 1-17; one block is p-type material, and the other is n-type. The small circles in the…

Conduction in Solids

Conduction in Solids: Conduction in Solids or any given material occurs when an applied voltage causes electrons within the material to move in a desired direction. This may be due…

Bandwidth Requirement in Communication System

Bandwidth Requirement in Communication System: It is reasonable to expect that the frequency range i.e., Bandwidth Requirement in Communication System for a given transmission should depend on the Bandwidth occupied…

Need of Modulation in Communication System

Need of Modulation in Communication System: Until the process of superimposing a low-frequency (long-wave) voice information component on a high-frequency (short-wave) carrier signal was perfected, the most widely used form…

Future Development of Utilization of Electrical Power

Future Development of Utilization of Electrical Power: As this is being written the whole energy field is so clouded in uncertainties that it would be foolish to attempt any quantitative…