1. Modulation index of a AM wave is measured using oscilloscope. The display on the CRO is as shown in figure it can be concluded that





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MCQ->Modulation index of a AM wave is measured using oscilloscope. The display on the CRO is as shown in figure it can be concluded that....
MCQ->The modulation index of an AM wave is measured using a CRO. The waveform is as shown in figure, the modulation index is nearly....
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MCQ->Assertion (A): If a carrier is modulated by three sine waves and m1, m2, m3 are the modulation indices, the total modulation index mt is mt = (m12 + m22 + m32)0.5Reason (R): An AM, higher the level of modulation, lower is the audio power required to produce modulation.

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MCQ->The antenna current of an AM broad cast transmitter, modulated to a depth of 40% by an audio sine wave is 11 amperes. It increased to 12 ampere as a result of simultaneous modulation by another sine wave. The modulation index due to this second sine wave is :....
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