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

This section includes 3 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.

A germanium transistor used as an amplifier has a collector cut off current ICBO=10µA at a temperature 27°C and β=50. What is the collector current when the base current is 0.25mA?

A. 10.76mA
B. 13.01mA
C. 15.67mA
D. 11.88Ma
Answer» C. 15.67mA
Discussion
2.

A common base transistor amplifier has an input resistance of 20Ω and output resistance of 100kΩ. If a signal of 400mV is applied between emitter and base, find the voltage amplification. Assume αac to be one.

A. 20
B. 50
C. 30
D. 25
Answer» C. 30
Discussion
3.

The total emitter current (IE) is given by_________

A. IE = IpE * InE
B. IE = IpE – InE
C. IE = IpE / InE
D. IE = IpE + InE
Answer» E.
Discussion