7. Calculate the signal to noise ratio of a system with output voltage of 1.5 V and noise of 0.015V.A. 80 dBB. 40 dBC. 44 dBD. 88 dB8.A system is designed using three cascaded subsystems. Each subsystem has its own noisefigure, the noise figure of the whole system is the addition of the noise figures of thesubsystems.A. TrueB. False9.The input S/N of a system 13, its output S/N is 7. Calculate the noise figure of the system (NF):A. 2.67B. 2.69C. 5.34D. 5.3610. A 3 MHz carrier is modulated by 3 kHz signal using AM modulation technique, aftermodulation the signal will be composed of the following frequency components:A. 3000 kHz, 3006 kHz, 5994 kHzB. 3000 kHz, 3012 kHz, 5988 kHzC. 3000 kHz, 3003 kHz, 5997 kHzD. 3003 kHz, 3006 kHz, 3008 kHz11. The amplitude of unmodulated AM carrier is 250 mv p-p. Calculate the modulation indexwhen its modulated max value is 550 m.:A. 45.00%B. 45.45%C. 45.40%D. 45.44%12.Determine the bandwidth required to transmit an FM signal with fi = 15 kHz and amaximum deviation 8 = 30 kHz:A. 70 kHzB. 80 kHzC. 40 kHzD. 15 kHz

Ratio (SNR) = 20log10 (voltage of signal/voltage of noise)

Answered: 7. Calculate the signal to noise ratio…

7. Calculate the signal to noise ratio of a system with output voltage of 15 V and noise of 0.015 V. A. 80 dB B. 40 dB C. 44 dB D. 88 dB

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter32: Alternating-current Circuits

Section: Chapter Questions

Problem 45AP: You have decided to build your own speaker system for your home entertainment system. The system...

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