Q1. What is the basic function of a semiconductor?
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Q2. Which of the following devices is used as a signal amplifier in communication systems?
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Q3. Which modulation technique is used in AM (Amplitude Modulation)?
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Q4. What is the purpose of a low-pass filter in electronic circuits?
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Q5. What is the main disadvantage of the FM (Frequency Modulation) technique?
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Q6. Which of the following is a characteristic of digital signals?
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Q7. What does the term "bit rate" refer to in communication systems?
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Q8. In digital communication, what is the term for the process of converting an analog signal into a digital signal?
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Q9. Which of the following modulation techniques is used in digital communication systems?
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Q10. What is the purpose of a rectifier in electronic circuits?
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Q11. Which of the following is a key advantage of using fiber optic communication systems over traditional copper wires?
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Q12. What is the function of a capacitor in a low-pass filter?
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Q13. What is the primary role of an oscillator in communication systems?
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Q14. What is the main function of the antenna in a communication system?
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Q15. Which type of signal modulation is used in television broadcasting?
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Q16. Which of the following devices is used for converting analog signals into digital signals?
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Q17. What is the bandwidth of a communication channel?
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Q18. What is the purpose of Frequency Division Multiplexing (FDM)?
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Q19. Which of the following is used to modulate a signal in a communication system?
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Q20. What is the main function of a demodulator in a communication system?
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