Q.6 (a): Given that V = XY is a solution of Laplace’s equation, where X is a function of x alone and Y is a function of y alone, determine which of the following functions are also solutions:
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Sol:
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Q.6 (b): An air-filled rectangular wave guide of cross-section 5 cm x 2 cm is operating in the TE10 mode at a frequency of 4 GHz. Determine:
(i) the group velocity (ii) the guide wavelength (iii) the attenuation to be expected at a frequency which is 0.95 time the cut-off frequency (assuming the guide walls to be made of perfect conductors).
Sol:
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