Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

What do you understand by frequency modulation? A signal of 10 kHz and peak voltage 20 V is used to modulate a carrier wave of frequency 10 MHz and peak voltage 40 V.Calculate a) depth of modulation .b) side bands frequencies.
Asked by Topperlearning User | 08 Jul, 2014, 10:36: AM
Expert Answer

Frequency modulation is a type of modulation in which the frequency of the carrier wave is changed in accordance with the amplitude of the modulating wave.For this the modulating wave is superimposed on a high frequency carrier wave in such a way that the amplitude of the modulated wave is same as that of the carrier wave but its frequency gets modified. 

Given : E = 20 V , E c = 40 V ;

           f m =10 kHz , f c = 10 MHz =10,000 kHz

       a. depth of modulation (Modulation index) ,

        Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Answered by | 08 Jul, 2014, 12:36: PM
CBSE 12-science - Physics
Asked by tanyagupta1874 | 17 Jan, 2022, 10:16: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 09:23: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 09:45: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 10:05: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 11:00: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 11:14: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 11:23: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Topperlearning User | 08 Jul, 2014, 12:59: PM
ANSWERED BY EXPERT
Get Free Sample Papers
×