Junction Transistor

Choose the correct expression for the current gain in n – p – n transistor in CE configuration:

Choose the correct expression for the current gain in n – p – n transistor in CE configuration:

An n.p.n transistor with current gain $\beta =100$ in common emitter configuration is shown in figure. The output voltage of the amplifier will be

For a constant collector-emitter voltage of $8 \mathrm{V}$, the collector current of a transistor reached to the value of $6 \mathrm{mA}$ from $4 \mathrm{mA}$, whereas base current changed from $20 \mu \mathrm{A}$ to $25 \mu \mathrm{A}$ value. If transistor is in active state, small signal current gain (current amplification factor) will be

Output is taken between the emitter and the base of a transistor in a common-collector configuration of an amplifier.

Show the circuit diagram for the biasing of a P-N-P transistor in common collector configuration.

Draw the circuit diagram for the common collector configuration of N-P-N transistor as an amplifier.

The relationship between current gain $\alpha$ in Common Base [CB] mode and current gain $\beta$ in Common Emitter [CE] mode is

A transistor having $\alpha =0.99$ and $V_{BE}=0.7 V,$ is given in the circuit. Find the value of the collector current.

________ segment supplies the majority charge carriers for the current flow through a transistor

The base region in a p-n-p transistor is obtained by doping an intrinsic semiconductor with

The moderate sized and heavily doped region of a transistor is

What will be the current gain in the common emitter amplifier if $I_C =0.9 mA, I_{b }= 11.25 \mu A?$

A transistor is connected in common emitter circuit configuration, the collector supply voltage is $10 \mathrm{V}$ and the voltage drop across a resistor of $1000 \mathrm{\Omega }$ in the collector circuit is $0.6 \mathrm{V}.$ If the current gain factor $\left(\beta \right)$ is $24,$ then the base current is ____$\mathrm{\mu A}$. (Round off to the Nearest Integer)

In an NPN transistor circuit, the collector current is $10\text{mA}\text{.}$ If $90\%$ of the emitted electrons reach the collector, the emitter current $\left(I_{\mathrm{E}}\right)$ and base current $\left(I_{\mathrm{B}}\right)$ are given by

The input signal is given to a CE amplifier having a voltage gain of $150$ is $V_{\mathrm{i}}=2\cos \left(15t+\frac{\mathrm{\pi }}{3}\right)$. The corresponding output signal will be:

For a common emitter configuration, if $\mathrm{\alpha }$ and $\mathrm{\beta }$ have their usual meanings, the correct relationship between $\mathrm{\alpha }$ and $\mathrm{\beta }$ is:

The ratio (R) of output resistance $r_0,$ and the input resistance $r_i$ in measurements of input and output characteristics of a transistor is typically in the range :

In the figure, given that $V_{\text{BB}}$ supply can vary from $0$ to $5.0 \mathrm{V}, V_{\mathrm{cc}}=5 \mathrm{V}, {\mathrm{\beta }}_{\mathrm{dc}}=200, R_{\mathrm{B}}=100 \mathrm{k\Omega }, R_{\mathrm{c}} =1 \mathrm{k\Omega }$  and $V_{\mathrm{BE}}=1.0 \mathrm{V}.$ The minimum base current and the input voltage at which the transistor will go to saturation will be, respectively:

A transistor connected at common emitter mode contains load resistance of $5 \mathrm{k\Omega }$ and an input resistance of $1 \mathrm{k\Omega }.$ If the input peak voltage is $5 \mathrm{mV}$ and the current gain is $50,$ find the voltage gain.