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Q. Explain Wireless electromagnetic channels?
Wireless electromagnetic channels are used in wireless communication systems, in which the electromagnetic energy is coupled to the propagation medium through an antenna that serves as a radiator. The physical size and configuration of the antenna depend mainly on the frequency of operation. For example, a radio station transmitting AM frequency band of 1 MHz (with a corresponding wavelength of λ = c/fc = 300 m) requires an antenna of at least 30 m (approximately one-tenth of the wavelength).
Give the properties and application of asbesto. Asbestos: It is inorganic fibrous material. Two kinds of asbestos are available. Chrysotile asbestos : This material is h
Find the power supplied by the voltage source and the power absorbed by the 24 Ω resistor (R3) in the circuit shown below: Determine the voltage V2 in the circuit shown.
Q. Two wattmeters are used, as shown in Figure, to measure the power absorbed by a balanced delta-connected load. Determine the total power in kW, the power factor, and the per-pha
Q. emf produced by windings? The time variation of emf for a single conductor corresponds to the spatial variation of air-gap flux density. By suitable winding design, the harm
What is a coprocessor? It is a specially designed microprocessor which take care of mathematical calculations including integer and floating point data .it is intended to work
Hello may i know if it is possible for me to teach online on electrical maters?
Consider a three-phase induction motor with a normal torque-speed characteristic. Neglecting the effects of stator resistance and leakage reactance, discuss the approximate effect
Q. For the configurations of the coupled coils shown in Figure, obtain the voltage equations for v 1 and v 2 .
How can I design alternator?
What is the impedance Z between terminals A and B of the networks shown below? Express your answers in polar form. Three voltages represented by v 1 (t)=100cosωt, v 2 (t)=7
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