In AM, the centpercent modulation is achieved when Options: A . &nbspCarrier amplitude = signal amplitude B . &nbspCarrier amplitude−1 = signal amplitude C . &nbspCarrier frequency = signal frequency D . &nbspCarrier frequency−1 = signal frequency E . &nbspThe frequency of modulated wave varies as frequency of carrier wave

In AM, the centpercent modulation is achieved when

Question

In AM, the centpercent modulation is achieved when

Options:

A . Carrier amplitude = signal amplitude

B . Carrier amplitude−1 = signal amplitude

C . Carrier frequency = signal frequency

D . Carrier frequency−1 = signal frequency

E . The frequency of modulated wave varies as frequency of carrier wave

Answer: Option A
:
A
When signal amplitude is qual to the carrier amplitude, the amplitude of carrier ware varies between 2A and zero.

m_{a} = \frac{A m p l i t u d e c h a r g e o f c a r r i e r}{A m p l i t u d e o f n o r m a l c a r r i e r} = \frac{2 A - A}{A} \times 100

= 100%

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