In a $p-n-p$ transistor,

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

In a common base amplifier,the phase difference between the input signal voltage and the output voltage is

For a given transistor amplifier circuit in $CE$ configuration with $V_{CC} = 1 \text{ V}$,$R_c = 1 \text{ k}\Omega$,$R_b = 100 \text{ k}\Omega$,and $\beta = 100$,the value of the base current $I_b$ is:

Given below are two statements:
Statement $I :$ $PN$ junction diodes can be used to function as a transistor,simply by connecting two diodes back-to-back,which acts as the base terminal.
Statement $II :$ In the study of transistors,the amplification factor $\beta$ indicates the ratio of the collector current to the base current.
In the light of the above statements,choose the correct answer from the options given below:

For a transistor in $CE$ mode to be used as an amplifier,it must be operated in: