Download Aptitude Crack
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Communication Systems - Engineering

Q1:

An RF carrier of 12 kV at 1 MHz is amplitude modulated by 1 kHz signal having peak value of 6 kV. The modulation pattern is seen on CRO screen. The voltage indicated will be

A 18 kV

B 1.001 kV

C 6 kV

D 36 kV

ANS:D - 36 kV

Modulation pattern on CRO will show peak to peak value = 2 (12 + 6) = 36 kV.