In a given common Emitter transistor, Emitter current is changed by 2.1mA .This results in a change of 2mA in the collector current and a change of 0.05V in the Emitter-base voltage. The input resistance (in ohm) is :-

In a silicon transistor, base current is changed by 20muA . This result in a change of 0.02V in base-emitter voltage and a change of 2 mA in the collector current. Find the input resistance, beta_(a.c.) and transconductance of the transistor. The transistor is used as an amplifier with the load resistance 5k Omega . What is the voltage gain of the amplifier?

A p-n-p transistor is used in common-emitter mode in an amplifier circuuit. A change of 40muA in the base current brings a change of 2mA in collector current and 0.04V in base-emitter volatage. Find the (a) input resistance r_(i) and (b) the base current amplification factor (beta) . (c ) if a load of 6kOmega is used, then also find the voltage gain of the amplifier.

In a common emitter transistor, the current gain is 80 . What is the change in collector current, when the change in base current is 250 muA ?

In a common emitter transistor circuit, the base current is 40 muA , then V_(BE) is

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 1 mA, the change in collector current is

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

The input resistance of a silicon transistor is 665Omega . Its base current is changed by 15muA which results in the change in collector current by 2mA . This transistor is used as a common emitter amplifier with a load resistance of 5kOmega . What is the voltage gain of the amplifier.

A charge of 8.0 mA in the emitter current brings a charge of 7.9 mA in the collector current. The values of alpha and beta are

A charge of 8.0 mA in the emitter current brings a charge of 7.9 mA in the collector current. The values of alpha and beta are

The input resistance of a silicon transistor is 100 Omega . Base current is changed by 40 muA which results in a change in collector current by 2 mA . This transistor is used as a common-emitter amplifier with a load resistance of 4k Omega . The voltage gain of the amplifier is