Microwave Devices and Circuits MCQs

193 questionsElectronics-EngineeringPage 3 of 22

Practice free Microwave Devices and Circuits multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 193 questions — no login required.

Question 19easy
If maximum frequency deviation of a transmission system is 75 kHz and modulating frequency is 15 kHz, the improvement in the output S/N ratio due to FM over a comparable AM system with m = 1 is
Question 20easy
The minimum value of ms for an FM system required to produce a noticeable improvement in S/N ratio over a comparable AM system with m =1 is
Question 21easy
The major source of thermal noise in a microwave system is
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Question 22easy
It spectrum density of thermal noise at room temperature is 4 x 10-21 W/Hz, then available noise power for a bandwidth of 1 MHz is ___ watt.
Question 23easy
Ceramic filters
Question 24easy
The value of thermal noise voltage for a resistor of 4 K for a bandwidth of 1 MHz and 'spectrum density of 4 x 10-21 W/Hz is
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Question 25easy
Indicate the noise whose source is in a category different from that of the other three.
Question 26easy
Ten telecommunication links working in tandem each have an S/N ratio of 60 dB. Their overall S/N ratio is ___ dB.
Question 27easy
Noise figure is used as figure-of-merit of
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