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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 I - V characteristic of an LED is

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  3. The forward biased diode connection among the following is

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

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  5. In an unbiased p-n junction, holes diffuse from the P-region to n-regi...

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

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  7. The value of the resistor , Rs needed in the DC voltage regulator circ...

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  8. Choose the correct statement

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  9. For a common emitter configuration, if alpha and beta have their usual...

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  10. If a, b, c, d are inputs to a gate and x is its output, then, as per t...

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

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  12. I-V characteristics of four devices are shown in figure Ident...

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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 following truth table corresponds to the logic gate

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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 1 from the circuit shown in the figure, the input mus...

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

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