Electronics and Communication Engineering - Exam Questions Papers - Discussion

18. 

What are the values of Emax and Emin displayed on the oscilloscope, when a 1 kV P-P carries is modulated to 50%?

[A]. 2 kV, 0.5 kV
[B]. 1 kV, 0.5 kV
[C]. 0.75 kV, 0.25 kV
[D]. 0.5 kV, 1.5 kV

Answer: Option C

Explanation:

Emax - Emin = 0.5 x 1 kV = 0.5 kV

2Emax = 1.5 kVi, Emax = 0.75 kV

Emin = 0.25 kV.


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