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For a common-emitter transistor amplifier, the current gain is 60 . If the emitter current is 6.6 mA then its base current is

Options

  1. A6.492 mA
  2. B0.108 mA
  3. C0.11 mA
  4. D0.343 mA

Correct answer

B. 0.108 mA

Step-by-step solution

For a common-emitter transistor amplifier, the current gain β is 60 The emitter current I E is 6.6 mA I E I B = 1 + β ⇒ I B = I E 1 + β

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