MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Amplitude of a Wave

In A.M. modul...

Question

In A.M. modulation the modulated signal is transmitted and amplified with help of:

A

Mixer .

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Audio Amplifier .

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Antenna.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

None of these.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Antenna.
Antenna is the only device that helps in transmitting the message signals in any communication system .So,in AM modulation the modulated signal is transmitted and amplified with help of anteena.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion :The modulation index (or modulation depth) of a modulation scheme describes by how much the modulated variable of the carrier signal varies around its normal modulated level Reason: In plate modulation, the plate voltage of the RF amplifier is modulated with the audio signal. The audio power requirement is 50 percent of the RF-carrier power.

Q. In television transmission, the VF signals are amplified and modulated on :

Q. A carrier signal

C (t) = 25 sin (2.512 \times 10^{10} t)

is amplitude modulated by a message signal

m (t) = 5 sin (1.57 \times 10^{8} t)

and transmitted through an antenna. What will be bandwidth of the modulated signal?

Q. Assertion :Audio signal of frequency 10 kHz cannot be transmitted over long distance without modulation. Reason: Length of the antenna required

λ / 4

, should have practical value.

Q. When only carrier is transmitted, antenna current observed is

8 A

, when it is modulated with

500 H z

sine wave, antenna current becomes

9.6 A

. The percentage of modulation is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

PHYSICS

Watch in App

explore_more_icon

Explore more

Amplitude of a Wave

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon