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Question

The coupling capacitors in an amplifier are used

A
to limit the bandwidth
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B
to match the impedance
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C
none of these
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D
to control output voltage signal
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Solution

The correct option is C none of these
(d)
The coupling capacitors in an amplifier prevent dc mixing with input and output . These capacitors block unwanted dc components and decouple or isolate dc from input and output.

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