In a transistor, if $\frac{I_C}{I_E} = \alpha$ and $\frac{I_C}{I_B} = \beta$. If $\alpha$ varies between $\frac{20}{21}$ and $\frac{100}{101}$, then the value of $\beta$ lies between:

In a transistor,in common emitter configuration,the ratio of power gain to voltage gain is

In a transistor,the collector current is always less than the emitter current because:

If the resistance $R_1$ is increased (see figure), how will the readings of the ammeter and voltmeter change?

The part of a transistor which is heavily doped to produce a large number of majority carriers is

For the given bipolar junction transistor,find the approximate value of $I_B$,if $V_{CC} = 9 \ V$,$V_{BB} = 1.5 \ V$,$R_C = 13 \ k\Omega$,$R_E = 17 \ k\Omega$,and $\beta = 100$. (Assume the transistor is in active mode and $V_{BE} = 0.7 \ V$)