Consider an amplifier circuit in which a transistor is used in common-emitter mode. The load resistance is $3 k \Omega$. When a signal of $30 mV$ is added to the base-emitter voltage, the base current changes by $30 \mu A$ and the collector current changes by $3 mA$. The power gain in this circuit will be:

In a transistor amplifier, $\beta = 62$, $R_L = 5 \times 10^3 \ \Omega$, and the input resistance is $500 \ \Omega$. The ratio of power gain to voltage gain is .......

For a transistor to act as a switch,it must be operated in

Consider the circuit arrangement shown in figure $(1)$ for studying input and output characteristics of an $n-p-n$ transistor in $CE$ configuration. Select the values of $R_B$ and $R_C$ for a transistor whose $V_{BE} = 0.7 \, V$, so that the transistor is operating at point $Q$ as shown in the characteristics shown in figure $(2)$. Given that the input impedance of the transistor is very small and $V_{CC} = V_{BB} = 16 \, V$, also find the voltage gain and power gain of the circuit making appropriate assumptions.

In a $p-n-p$ transistor,

In a transistor output characteristic commonly used in common emitter configuration,the base current $I_{B}$,the collector current $I_{C}$,and the collector-emitter voltage $V_{CE}$ have values of the following orders of magnitude in the active region: