principles of AM

What does AM stand for in Amplitude Modulation?

• A. Amplitude Multiplication
• B. Angle Modulation
• C. Amplitude Modulation
• D. Amperes per Meter

What is the function of the modulating signal in an amplitude modulation system?

• A. It carries the information to be transmitted
• B. It amplifies the signal
• C. It filters out noise from the carrier signal
• D. It generates the carrier signal

What is the modulation index when the modulating signal is 6V peak-to-peak and the carrier signal is 24V peak-to-peak?

• A. 0.5
• B. 1
• C. 2
• D. 4

What happens if the modulation index is increased beyond 1 in an AM system?

• A. The carrier signal becomes frequency modulated
• B. The carrier signal becomes phase modulated
• C. The modulated signal becomes over-modulated
• D. The modulated signal becomes under-modulated

Which type of modulation is more sensitive to noise, AM or FM?

• A. AM
• B. FM
• C. Both are equally sensitive to noise
• D. Neither is sensitive to noise