In a transistor (common emitter configuration) the ratio of power gain to voltage gain is ($\alpha$ and $\beta$ are current ratios)

The current gain of a common emitter amplifier is $69$. If the emitter current is $7.0\,mA$,the collector current is.....$mA$.

In the study of a transistor as an amplifier,the ratio of collector current to emitter current is $0.98$. Then,the ratio of collector current to base current will be:

For a transistor amplifier in common emitter configuration with a load impedance of $1 \ k\Omega$ ($h_{fe} = 50$ and $h_{oe} = 25 \ \mu A/V$),the current gain is:

The input resistance of a common emitter transistor amplifier,if the output resistance is $500\,k\Omega$,the current gain $\alpha = 0.98$ and power gain is $6.0625 \times 10^6$,is.......$\Omega$.

The phase difference between input and output voltages of a $CE$ (common emitter) amplifier circuit is........$^o$.