Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Define modulation index. why is it kept low? What is the role of a bandpass filter?        

Define modulation index. why is it kept low? What is the role of a bandpass filter?

 

 

 

 
 
 
 
 

Answers (1)

Modulation index measures how much modulation is done on the carrier signal. For amplitude modulation
modulation index
m= \frac{E_{m}}{E_{c}}
where Em is the amplitude of message signal and Ec is the amplitude of the carrier wave.
\rightarrow the modulation index is kept less than 1 to avoid the distortion in modulated signal.
\rightarrow Bandpass filter limits the bandwidth of output signal to the band required for transmission.

Posted by

Safeer PP

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

Reports saying CBSE cannot conduct board exams twice a year currently ‘totally incorrect’; board denies claims
anam-khan

CBSE Class 10, 12 revaluation result 2024 out at results.cbse.nic.in
anam-khan

Provide sanitary pads, restroom breaks to female students during board exams: Education ministry to schools

Latest Question