If $\alpha$ is the current gain in a $CB$ circuit and $\beta$ is the current gain in a $CE$ circuit,then $\alpha / \beta$ = ......

In a transistor circuit,the emitter-base circuit of a $n-p-n$ transistor is always

$A$ transistor is used as an amplifier in a common-base configuration. The load resistance is $5 \text{ k}\Omega$, the current gain is $0.98$, and the input resistance is $70 \Omega$. The voltage gain and power gain are, respectively:

In a transistor, the base current is $10 \mu A$ and the emitter current is $1 \text{ mA}$. Then, the collector current is: (in $\mu A$)

$A$ transistor is operated in $CE$ configuration at $V_{CC} = 2 \ V$ such that a change in base current from $100 \ \mu A$ to $200 \ \mu A$ produces a change in the collector current from $9 \ mA$ to $16.5 \ mA$. The value of current gain,$\beta$ is .........

When $n-p-n$ junction transistor is used as an amplifier in common emitter mode,