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Choose the correct statement....

Choose the correct statement.

A

In frequency modulation the amplitude of the high frequency carrier wace is made to vary in proportion to the frequency of the audio signal

B

In amplitude modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal

C

In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal

D

In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.

Text Solution

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The correct Answer is:
B
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ALLEN-SEMICONDUCTORS-Part-3(Exercise-4)
  1. A diode detector is used to detect an amplitude modulated wave of 60% ...

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  2. The 1- V characteristic of on LED is

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  3. The forward biased diode connection is

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  4. A single of 5 kHz frequency is amplitude modulated on a carrier wave o...

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  5. In an unbiased p-n junction electrons diffuse from n-region to p-regio...

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  6. A 2V battery is connected across AB as shown in the figure. The value ...

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  7. The value of the resistor, R(S), needed in the dc voltage regulator ci...

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  8. Choose the correct statement.

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  9. For a common emiter configuration if a and beta have their usualy mean...

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  10. if a,b,c,dare inputs to a gate and x is its output , then as per the f...

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  11. The temperature dependence of resistance of Cu and undoped Si in the t...

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  12. Identify the semiconductor devices whose characteristics are given bel...

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  13. An audio signal consists of two distinct sound. One a human speech sig...

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  14. An unknown transistor needs to be identified as npn and pnp type. A mu...

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  15. An experiment is preformed to determine the I-V characteristics of a Z...

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  16. The truth table given in fig. represent : {:(A,B,Y),(0,0,0),(0,1,1),...

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  17. A modulated signal Cm(t) has the form Cm(t) = 30 sin 300pi t + 20 (cos...

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  18. The ratio (R) of output resistance r0 and the input resistance r, in m...

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  19. To get an output of 1 form the circuit shown in figure the input must ...

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  20. A realistic graph depiciting the variation of thhe reciprocal of input...

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