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(a) Now consider a typical open-wire transmission line with parameters of R = 14 /mi, L = 4.6 mH/mi, C = 0.01 µF/mi, and G = 0.3×10-6S/mi. If the line operates at 1 kHz, find the characteristic impedance ¯ Z0 and the propagation constant ¯ γ .
(b) Then consider a 100-mi open-wire ?at telephone line with the same parameters as those given in part (a). The matched transmissionline is shown in Figure P15.1.18(b). If the frequency of the generator is 1 kHz, determine the following:
(i) Sending-end current ¯ IS .
(ii) Sending-end voltage ¯ ES .
(iii) Sending-end power PS.
(iv) Receiving-end current ¯ IR.
(v) Receiving-end voltage ¯ ER.
(vi) Receiving-end power PR.
(vii) Power loss in dB, which is given by 10 log (PS/PR).
What is the function of 8254 Programmable Interval Timer? 8253 or 8254 Timer Description and Initialization PTI that is programmable Interval Timer/Counter) 8253
A photodiode is made to detect light quickly a solar cell is made to collect energy from light. They are both typically silicon diodes, but modified to meet their dissimilar requir
Q. Define wireless communications? The latest wireless communications technology is the personal satellite phone. The coverage is planetary and one can reach anywhere on earth.
Q. A shift register can be used as a binary (a) divide- by-2, and (b) multiply-by-2 counter. Explain. Q. Show a block diagram of a 4-bit shift-right register using JKFFs.
hint on clamping as a project topic
Three Phase AC Circuit: Alternating circuits thus far discussed have single phase supply system and it's satisfactory for domestic application as light, fan and heating, etc.
(a) A wye-connected generator is to be designed to supply a 20-kV three-phase line. Find the terminal line-to-neutral voltage of each phase winding. (b) If the windings of the g
maxium capacity of genrators in practical use
Q. Use MATLAB to obtain the Laplace transform of the waveform f(t) = [200t e -25t + 10 e -50t sin(25t)]u(t) which consists of a damped ramp and a damped sine. Also show the
Testing of CT Operated Meters The subsequent tests should be carried out for CT operated meters: i) Ratio test through primary injection kit, ii) Polarity test, iii)
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