# Given below are two statements :

Question:

Given below are two statements :

Statement I : PN junction diodes can be used to function as transistor, simply by connecting two diodes, back to back, which acts as the base terminal.

Statement II : In the study of transistor, the amplification factor $\beta$ indicates 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.

1. Statement I is false but Statement II is true.

2. Both Statement I and Statement II are true.

3. Statement $\mathrm{I}$ is true but Statement II is false.

4. Both Statement I and Statement II are false.

Correct Option: 1

Solution:

(1)

$S-1$

Statement 1 is false because in case of two discrete back to back connected diodes, there are four doped regions instead of three and there is nothing that resembles a thin base region between an emitter and a collector.

$\mathbf{S}-2$

Statement-2 is true, as $\beta=\frac{I_{C}}{I_{B}}$