Junction Transistor
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 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.
Show answer and solution
Answer: (b)
- Statement I: false. A transistor needs a very thin, lightly doped base; two separate diodes joined back to back have a thick common region, so carriers cannot pass through and there is no transistor action.
- Statement II: true. .
- So the answer is (b).