problem 1: Ordinary low frequency circuit analysis is not sufficient to describe the electrical phenomenon-taking place at microwave frequencies, describe why?
problem 2: Describe the problem of transit time effect in tubes at microwave frequencies?
problem 3: Why are semiconductors favored over the vacuum tubes in most of the applications?
problem 4: Derive an expression for the maximum possible theoretical efficiency of a two cavity klystron.
problem 5: Describe the importance of Hull voltage in the magnetron.
problem 6: Describe the principle of working of travelling wave tube.
problem 7: Determine the expression for effectiveness of two cavity Klystron amplifier.
problem 8: Describe with neat diagrams the given in a Magnetron:
a) Resonant Modes and their separation
b) Method of Oscillation.
problem 9: What do you mean by the term current modulation?
problem 10: In what kind of applications reflex klystrons is favored and describe why?