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A transistor is operated in common-emitter configuration at V_ C=2 ~V such that a change in the base current from 100 μ A to 200 μ A produces a…

NEET UG 2009 — Physics Modern Physics

2009mcqmedium

A transistor is operated in common-emitter configuration at VC=2 V\mathrm{V}_{\mathrm{C}}=2 \mathrm{~V}VC​=2 V such that a change in the base current from 100μA100 \mu \mathrm{A}100μA to 200μA200 \mu \mathrm{A}200μA produces a change in the collector current from 5 mA5 \mathrm{~mA}5 mA to 10 mA10 \mathrm{~mA}10 mA. The current gain is :

Official previous-year question

Held on 30 Apr 2009 · Verified 9 Jul 2026.

Options

  1. A

    50

  2. B

    75

  3. C

    100

  4. D

    150

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