Explore topic-wise MCQs in Electronic Devices and Circuits Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.	If a matched attenuator with a loss of 3.2 dB is placed between the source and the amplifier’s input, what is the operating spot noise figure of the attenuator amplifier cascade if the attenuator’s physical temperature is 290 K?
A.	9 db
B.	11.3 db
C.	10.4 db
D.	13.3 db
Answer» E.

Discussion

2.	A resistor R 1 k is maintained at 17C. The rms noise voltage generated in a bandwidth of 10 kHz is
A.	16 x 10(-14) V
B.	0.4 µV
C.	4 µV
D.	16 x 10(-18) V
Answer» C. 4 µV

Discussion

Explore topic-wise MCQs in Electronic Devices and Circuits Questions and Answers.

If a matched attenuator with a loss of 3.2 dB is placed between the source and the amplifier’s input, what is the operating spot noise figure of the attenuator amplifier cascade if the attenuator’s physical temperature is 290 K?

A resistor R 1 k is maintained at 17C. The rms noise voltage generated in a bandwidth of 10 kHz is