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Q. Illustrate Signal attenuation?
Signal attenuation in many channels can be offset by using amplifiers to boost the signal level during transmission. However, the amplifier also introduces additive noise in the process of amplification, thereby corrupting the signal. The additional noise must also be taken into consideration in the design of the communication system.
Any conductive two-terminal device is characterized generally as lossy, with some resistance R. A resistor, which is at a temperature τ above absolute zero, contains free electrons that exhibit randommotion and, thus, result in a noise voltage across the terminals of the resistor. Such a noise voltage is known as thermal noise. If the noise is introduced primarily by electronic components and amplifiers at the receiver, it may be characterized as thermal noise.
The spectrum analyser plots amplitude against frequency, in other words it shows signals in the frequency domain. The spectrum analyser has the same trigger options as the oscillos
Q. A practical current source is represented by an ideal current source of 200 mA along with a shunt internal source resistance of 12 k. Determine the percentage drop in load curr
what is SWOT for electrical engineer
The resistance of 1.5 km of wire of cross-sectional area 0.17 mm 2 is 150Ω. Determine the resistivity of the wire.
What are the Advantages of digital cameras Advantages of digital cameras over manual cameras include: no processing costs (As there is no need to develop film or make prints),
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Q. Basic working of optical coupler? The optical coupler is suitable for frequencies in the low megahertz range. The photodiode type shown above can handle only small currents;
Comparison of Induction and Dielectric Heating After studying the induction and dielectric heating followings points may consider for comparison between induction an
Power Distribution: - The Energy Conservation Act, 2001, gives the legal framework, institutional arrangement and a regulatory mechanism at the Central and State level to emba
Estimate the software tasks required for developing the product. These are likely to include the development of various software routines, associated documentation and verification
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