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Wave Optics
Question
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Transfer characteristic [output voltage (Vo)  vs input voltage (Vi)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used

  • in region III

  • both in region (I) and (III)

  • in region (II)

  • in region

Answer

B.

both in region (I) and (III)

For using a transistor as a switch, it is used in cut-off state and saturation state only.

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