1 Answer

When Q-point is at cut off region means it is just above the horizontal axis VCE

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Description : Why the cutoff frequency is taken for 3db?

Answer : BJT act as switch in saturation and  cutoff region ( ON state in saturation region and OFF state in cut-off region )

Answer : In cut-off region of BJT both the emitter-base junction and collector-base junction are reverse biased.

Answer : Active region of BJT act as amplifier.

Description : An FET is a better chopper than a BJT because it has (A) lower offset voltage (B) higher series ON resistance (C) lower input current (D) higher input impedance

Answer : An FET is a better chopper than a BJT because it has lower offset voltage

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