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Q. If b and a are the radii of the outer and inner conductors, respectively, of a coaxial cable using a polyethylene dielectric (εr = 2.26), what ratio b/a is needed for the cable to have a characteristic impedance ¯ Z0 = R0 = (60/√εr ) ln (b/a) of 50?
Explain the Synchronous Compensators These are synchronous motors running without mechanical loads (or with load if required). Similar to the synchronous generators, they can a
Q. Show Noise and Stability of operational amplifier? Noise This refers to the small, rapidly varying, random spurious signals generated by all electronic circuits. Noise
Cointruct and simulate using multisim software a series voltage regulator to supply 1A to a load at a constant voltage of 9V. The supply voltage to regulator is 15V±10%. The minimu
Q. Explain braking mode of rotating machines? The braking mode has both mechanical and electric energy input. The total input is dissipated as heat. The machine is driven by th
Q. What is the significance of giving a negative voltage to the gate higher than that of the source? This is done to reach the saturation at a lower of level of V DS . The re
Design a circuit using op-amp that will reject the 60kHz power line noise and also reject high signal frequency above 800Khz. The stop-band width around the 60kHz centre frequency
What is hall effect?
With respect to serial communication define the half duplex. Half Duplex Transmission: A channel of half duplex can send and receive, but not at same time. It's like a one-la
In most real signal processing applications the measured signals can not be described by an analytical expression. In addition, by the Wold decomposition theorem a stationary signa
Discuss mode -2 (bi-directional mode) of 8255 (Programmable Peripheral Interface). Only permitted with port A. Bi-directional bus data used for interfacing two computers and GP
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