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Q. (a) What is the difference between a TEM mode and a TE mode?
(b) Explain the terms "cutoff wavelength" and "dominant mode" as applied to waveguides. Find the cutoff wavelength for an air-filled rectangular waveguide for the propagation by the dominant mode.
Explain the factors affecting permeability and hysterisis loss. Factors affecting permeability and hysterisis loss: When the initial permeability is high, the hysterisis los
Magnetic materials (A) provide path to magnetic flux. (B) are good insulators. (C) are semiconductors. (D) None. Ans: Magnetic materials provide path to
Q For a three-phase, fully controlled, recti?er-fed, separately excited dc motor, corresponding to ideal no-load operation, find the expression for the no-load speeds. Comment on w
Question: (a) Consider the following RC admittance function: (i) If the function is to be realised using the Cauer II Form, find the values of the different components
Q. Carrier Modulation by Digital Signals? Digitally modulated signals with low-pass spectral characteristics can be transmitted directly through baseband channels (having low-p
Q. A 75-kVA, 230/115-V, 60-Hz transformer was tested with these results: • Open-circuit test: 115 V, 16.3 A, 750 W • Short-circuit test: 9.5 V, 326 A, 1200 W Determine:
cosider a causal LTI system whose system function is H(z)=1-1/5z^-1/(1-1/2z^-1+1/3z^-2)(1+1/4z^-1) find the direct form 1 and direct form 2
how does Proportional band affect the performance of control system?
Four Quadrant Chopper or Class E chopper Figure class E chopper circuit Mode I When
how to solve the circuit
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