A change of `20 muA` in the base current produces a change of 0.5mA in the collector current. Calculate `beta_(ac)`

In a silicon transistor, a change of 7.79 mA in the emitter current produces a change of 7.7 mA in the collector current. What change in the base current is necessary to produce an equivalent change in the collector current?

In a transistor, a change of 7.9 mA in emitter current produces a change of 7.8 mA in the collector current produces a change of 7.7 mA in the collector current. What change in the base current is necessary to produce an equivalent change in the collector current?

In a silicon transistor, the base current is changed by 20muA . This results in a change of 0.02 V in base to emitter voltage and a change of 2mA in the collector current. Find the input resistance, beta_(ac) and transconductance of the transistor g_m .

In a silicon transistor, the base current is changed by 20muA . This results in a change of 0.02 V in base to emitter voltage and a change of 2mA in the collector current. This transistor is used as an amplifier in CE configuration with load resistance 5kOmega . What is the voltage gain of the amplifier.

The input resistance of a silicon transistor is 665 Omega when base current is changed by 15muA , the collector current changes by 2mA. In a common emitter amplifier load resistance is 5k Omega . Calculate current gain beta_(ac)

The input resistance of a silicon transistor is 665 Omega when base current is changed by 15muA , the collector current changes by 2mA. In a common emitter amplifier load resistance is 5k Omega . Calculate transconductance (g_m) & voltage gain (A_v) of the amplifier.