Related InterviewSolutions

• What is the modulation index of an AM signal if the peak voltage goes from Emax to Emin?(a) \(\frac{E_{min}}{E_{max}}\)(b) \(\frac{E_{max}}{E_{min}}\)(c) \(\frac{E_{max} – E_{min}}{E_{max} + E_{min}}\)(d) \(\frac{E_{max} + E_{min}}{E_{max} – E_{min}}\)This question was addressed to me during a job interview.My query is from Spectrum of AM SC Waves in section Side Band Techniques of Analog Communications
• Which frequencies is produced if Vasin⁡(ωa t) amplitude modulates the carrier Vcsin⁡(ωc t)?(a) (ωc + ωa), (ωc – ωa) and ωc(b) (ωc) and (ωa)(c) (ωc + ωa) and (2ωc + 2ωa)(d) (2ωc) and (2ωa)I got this question in an online quiz.My query is from Spectrum of AM SC Waves in chapter Side Band Techniques of Analog Communications
• What is the total sideband power if there is 100% modulation?(a) half the carrier wave(b) twice the carrier wave(c) equal to the carrier wave(d) one-fourth of the carrier waveI got this question in final exam.This interesting question is from Spectrum of AM SC Waves topic in portion Side Band Techniques of Analog Communications
• If AM radio station increases its modulation index then there is an increase in receiving RF signal.(a) True(b) FalseI got this question in final exam.Origin of the question is Spectrum of AM SC Waves in section Side Band Techniques of Analog Communications
• How an AM radio station increase its signal-to-noise ratio?(a) by increasing its modulation index(b) by decreasing its modulation index(c) by maintaining a constant modulation index(d) by increasing the frequencyThis question was addressed to me by my college professor while I was bunking the class.My question comes from Spectrum of AM SC Waves in section Side Band Techniques of Analog Communications
• What is the main problem in using quadrature amplitude modulation?(a) high bandwidth is required(b) high power is required(c) incompability with ordinary AM radio waves(d) bandwidth required is lessI had been asked this question in class test.My enquiry is from Spectrum of AM SC Waves in section Side Band Techniques of Analog Communications
• Only audio can be sent using Amplitude Modulation.(a) True(b) FalseI have been asked this question during an internship interview.The origin of the question is Chopper Circuit topic in division Side Band Techniques of Analog Communications
• A single sideband modulation system requires a more complex demodulator circuit.(a) True(b) FalseThe question was posed to me during an online exam.Question is from Spectrum of AM SC Waves topic in chapter Side Band Techniques of Analog Communications
• To demodulate a USB SSB signal, the receiver must ________(a) be set to USB mode(b) reinsert the carrier(c) be set to USB mode and reinsert the carrier(d) have low-fidelityThe question was asked by my college director while I was bunking the class.This interesting question is from Spectrum of AM SC Waves topic in chapter Side Band Techniques of Analog Communications
• What is the full form of PEP in communication?(a) Peak Efficiency Power(b) Peak Envelope Power(c) Peak Efficiency Product(d) Peak Envelope PowerThe question was posed to me during an interview.This intriguing question originated from Chopper Circuit topic in division Side Band Techniques of Analog Communications