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assuming that the coupling capacitor is a short circuit for the ac signal and an open circuit for dc. [hint: apply the superposition principle for the ac and dc sources.]

Sagot :

When connecting two circuits, a coupling capacitor is used to block DC and allow just the AC signal from the first circuit to flow through to the second.

Explain about the coupling capacitor?

When an alternating current signal needs to be sent from one node to another, a coupling capacitor is utilized. The coupling capacitor permits the coupling of AC changes from an input source but disallows any DC coupling, preserving the values of voltage, current, and resistance within each stage.

The purpose of coupling capacitors is to stop the bias voltage being provided to the base of a transistor by the incoming AC signal from interfering with it.

The DC bias settings of the two connected circuits can be separated using this technique. AC coupling is another name for capacitive coupling, and the capacitor utilized for it is also referred to as a DC-blocking capacitor.

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