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1
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
In amplitude modulation, the amplitude of the carrier wave is 10 V and the amplitude of one of the side bands is 2 V . Then, the modulation index is
A
0.4
B
0,6
C
0.7
D
0.5
2
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A carrier is simultaneously modulated by two sine waves with modulation indices of 0.3 and 0.4 , then the total modulation index is
A
1
B
0.12
C
0.5
D
0.7
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the maximum and minimum voltages of an $A M$ wave are $V_{\max }$ and $V_{\min }$ respectively. Then, the modulation factor $m$ is
A
$\left(V_{\text {max }}+V_{\text {min }}\right) /\left(V_{\text {max }} \cdot V_{\text {min }}\right)$
B
$\left(V_{\text {max }}-V_{\text {mi }}\right) /\left(V_{\text {max }}+V_{\text {min }}\right)$
C
$2 V_{\text {max }}-V_{\text {min }} /\left(V_{\text {max }}+V_{\text {max }}\right)$
D
$\left(V_{\text {nes }}+V_{\text {min }}\right) /\left(V_{\text {max }}-V_{\text {man }}\right)$
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