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An amplitude modulated wave is as shown in figure . Then , the modulation index will be

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An amplitude modulated wave is as shown in figure . Then , the modulation index will be
image
A. `0.20`
B. `0.50`
C. `0.67`
D. `0.8`
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Correct Answer - C
`V_("max")=50V,V_("min")=20V`
`m_(a)=(V_("max")-V_("max"))/(V_("max")+V_("min"))=(50-20)/(50+20)=0.67`
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