To model a transmission line of infinitesimal length Î”z, the lumped element that is not used is:

Electronics and Communication Engineering (ECE) : Microwave Communication - Quiz(MCQ)

transistor

resistor

inductor

capacitor

Correct Answer : Option (A) : transistor

Explanation : In the lumped element circuit model of a transmission line, we use only resistor, capacitor and inductor. Hence no transistor is used.

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In a microwave resistor the wall thickness is made as small as possible to

minimize capacitive effect

reduce inductance

have low value of R

have high value of R

Correct Answer : minimize capacitive effect

In a klystron amplifier the transit time of electron passing the gap in the cavity should be

less than half cycle

less than one cycle

less than quarter cycle

more than quarter cycle

Correct Answer : less than quarter cycle

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the flow of electromagnetic energy is zero

the flow of electromagnetic energy is infinite

the flow of electromagnetic energy is 10% of maximum

the flow of electromagnetic energy is 50% of maximum

Correct Answer : the flow of electromagnetic energy is infinite