Q124 / 125 · BITSAT 2013 · Physics

Transfer characteristics [output voltage $\left(V_{0}\right)$ vs input voltage $\left.\left(V_{1}\right)\right]$ for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used Figure

  • A
    in region (III)
  • Correct answer
    B
    both in region (I) and (II)
  • C
    in region (II)
  • D
    in region (I)

Solution

$\mathrm{I} \rightarrow \mathrm{ON}$ $\mathrm{II} \rightarrow \mathrm{OFF}$ In $I^{\text {nd }}$ state it is used as a amplifier it is active region.

Hence, the correct answer is option: 'B'.

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