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Class 12 Physics
Communication Systems
Quiz 2
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AM is used for broadcasting because:
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it is more noise immune than other modulation system
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it requires less transmitting power compare with other systems
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its use avoids receiver complexity
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No other modulation system can provide the necessary bandwidth faithful transmission
Explanation
its use avoids receiver complexity
Digital signals:
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represents values as discrete steps
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Do not represents values as discrete steps
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represent values steps
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represent random steps
Explanation
represents values as discrete steps
Increase in frequency deviation results into:
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increase in noise of FM receiver
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decrease in noise of AM receiver
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increase in noise of Am receiver
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decrease in noise of FM receiver
Explanation
decrease in noise of AM receiver
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