Electronics interview Questions

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PINS OF 555 TIMER

9 Important Electronics Interview Questions :

Youtube video ; https://youtu.be/O-9HjQpRVLM

Q. 1) In Transistor the base current is what percent% of the Emitter current ?
ANS – 1%

Q. 2) Demultiplexer is also known as ?
ANS – Data Distributor
EXPLAIN – Sends single input to multiple outputs

Q. 3) How many AND Gates are required to realize Y= CD + EF + G
ANS – 2
EXPLAIN – 2 Gates are reqiured for CD and EF.

Q. 4) What varies and remains constant in (FM) Frequency Modulation?
ANS – Frequency – varies
Amplitude – remains constant

Q. 5) What is the Enemy of communication                                                                       ANS – Noise

Q. 6) Characteristics of an ideal Op amp ( Operational Amplifier )

Ideal Opamp characteristics

 

Q. 7) Pins of 555 timer

PINS OF 555 TIMER

 

Q. 8) What does a complete Communication System includes?
ANS – Transmitter , Receiver and Spectrum Analyzer

Q. 9) What are Electromagnetic Waves ranging from frequency 1kHZ to 1GHz called?      ANS  – Radio Waves                                                                                                      EXPLAIN :

ELectomagmetic Spectrum

 

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