Home/Electronics-Engineering/Analog Communication System

Analog Communication System MCQs

280 questionsElectronics-EngineeringPage 5 of 32

Practice free Analog Communication System multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 280 questions — no login required.

Question 37easy

The difference between phase and frequency modulation

⚑ Report ✎ Feedback

Question 38easy

A 100 MHz carrier wave is frequency modulated by a 5-kHz sine wave. If resultant FM signal has a frequency deviation of 50 kHz, its carrier swing is kHz.

⚑ Report ✎ Feedback

Question 39easy

In frequency modulation

⚑ Report ✎ Feedback

Question 40easy

An FM signal has a carrier swing of 100 kHz and a modulating signal of 10 kHz. Its modulation index is

⚑ Report ✎ Feedback

Question 41easy

An FM signalis modulated by an 8 kHz sine wave and has maximum and minimum frequencies of 100.05 MHz and 99.95 MHz respectively. Its deviation frequency is

⚑ Report ✎ Feedback

Question 42easy

In frequency modulation for a given frequency deviation, the modulation index varies as the modulating frequency.

⚑ Report ✎ Feedback

Question 43easy

In an FM signal, the power as the modulation index increases.

⚑ Report ✎ Feedback

Question 44easy

The noise performance ofa wideband FM system

⚑ Report ✎ Feedback

Question 45easy

A 4-kHz audio-signal modulates a 125-MHz carrier, causing a frequency deviation of 5 kHz. The bandwidth of the narrow band FM signal is