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InterviewSolution
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The output current of an 80% mondulating amplitude modulated generator is 1.8A. To what value will the current rise if the generator is additionally modulated by another audiowave of modulation index 0.6?A. 1.71AB. 1.81AC. 1.91AD. 2.01A |
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Answer» Correct Answer - C Here, `I_(t)=1.8A A: mu_(1)=(80)/(100)=0.80: mu_(2)=0.6` `I_(t)=I_(c)sqrt(1+mu_(1)^(2)//2)` `I_(c)=(1)/(sqrt(1+mu_(1)^(2)//2))=(1.8)/(sqrt(1+(0.8)^(2)//2))=(1.8)/(sqrt(1.32))` `I_("net total")=I_(c)sqrt(1+(mu_(1)^(2))/(2)+(mu_(2)^(2))/(2))` `=(1.8)/sqrt(1.32)sqrt(1+((0.8)^(2))/(2)+((0.6)^(2))/(2))=1.91A` |
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