Why you use capacitor in transistor amplifier circuit hindi?
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The input and the external capacitors are used to block the dc supply. The emitter bypass capacitor is used to increase the AC gain of the amplifier by shunting the emitter resistance for AC . We should include the emitter resistance in the circuit because it gives better DC stability. Keeping the emitter resistance reduces the DC gain of the amplifier. so to increase the gain of the amplifier a capacitor is placed across emitter resistance.
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