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Q. (a) An ampli?er with F0 = 3 or 4.77 dB, f0 = 4 GHz, and BN = 14 MHz is used with an antenna forwhich Ta =200K. The connecting path loss is 1.45, or 1.61 dB at a physical temperature of 250 K. Find the available system noise power. compute the signal-to-noise ratio.
What is tunnel effect? Discuss the Alpha decay as an example of tunnel effect. Prove that tunneling increases on decreasing the height and width of the barrier. Explain what do you
what are measuring devices?
Execution Unit receives program instruction codes and data from BIU, implements these instructions and store the result in general registers.
what do you mean by band in communication? how it differs from bandwidth?
Redraw the Wheat stone bridge circuit of Figure and show that Equation holds good for the null condition when the meter A reads zero current.
Q. Explain the working principle of an opto coupler? When it is necessary to block the voltage between one electronic circuit and another, and transfer the signal at the same t
Q. Two single-phase transformers, each rated 2400: 120-V, are to be interconnected for (a) 4800:240- V operation, and (b) 2400:120-V operation. Draw circuit diagrams and show polar
The material with lowest resistivity is (A) Constantan. (B) Silver. (C) manganin. (D) nichrome. Ans: The material with lowest resist
Problem: The current voltage characteristic [ ID versus VD] of a semiconductor diode for VD > 0 [forward bias] is given in Figure Under reverse bias conditions [VD Fi
Explain FET amplifiers? Just like the BJT amplifiers, FET amplifiers are constructed in common-source (CS, analogous to CE), common-drain (CD, analogous to CC), and common-gate
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