Given below are two statements: Statement I : p - n junction diodes can be used to function as a transistor,…

Given below are two statements:

Statement I : p-n 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 β 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. Both Statement I and Statement II are false
  2. Statement I is true but Statement II is false
  3. Statement I is false but Statement II is true
  4. Both Statement I and Statement II are true

Solution

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.
S-2 Statement-2 is true, as β=ICIB

Asked in: JEE Main 2021 (24 Feb Shift 2)

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