Bissoy.com
Doctors Medicines MCQs Q&A

In amplitude modulation:

In amplitude modulation: Correct Answer carrier amplitude is changed

A wave has 3 parameters Amplitude, Phase and Frequency. Thus there are 3 types of modulation techniques

Amplitude Modulation:

The amplitude of the carrier is varied according to the amplitude of the message signal.

Frequency Modulation:

The frequency of the carrier is varied according to the amplitude of the message signal.

Phase Modulation:

The Phase of the carrier is varied according to the amplitude of the message signal.

[ alt="RRB JE EC 13 6Q 28thAug 2015 Shift3 Hindi images Q1" src="//storage.googleapis.com/tb-img/production/19/02/RRB_JE_EC_13_6Q_28thAug_2015_Shift3_Hindi_images_Q1.PNG" style="width: 408px; height: 392px;">

Related Questions

Consider the following types of modulation: 1. Amplitude modulation 2. Frequency modulation 3. Phase modulation 4. Pulse modulation Which of the above modulation are used for telecasting TV programs?
Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
In Amplitude Modulation, the instantaneous values of the carrier amplitude changes in accordance with the amplitude and frequency variations of the modulating signal.
Maximum Amplitude of an amplitude modulated 10V and minimum amplitude is 5V. Find its modulation index?
Overmodulation (amplitude) occurs when signal amplitude is ___________ carrier amplitude
A wave having an amplitude of 3cm is to be superimposed with another wave of the same amplitude. What should be their phase difference if the net amplitude has to be 0?
In amplitude modulation, amplitude of carrier wave varied according to the
In amplitude modulation, magnitude of side bands is 2ma times the carrier amplitude.
In amplitude modulation, magnitude of side bands is ________ times the carrier amplitude.
If modulation is 100% then signal amplitude is ___________ carrier amplitude