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In a common-emitter configuration of a transistor, the base current I E = 2 μ A , α = 0.9 then the value of I C is

Options

  1. A3 . 0   μ A
  2. B2 . 25   μ A
  3. C4 . 9   μ A
  4. D1 . 8 μ A

Correct answer

D. 1 . 8 μ A

Step-by-step solution

We know that current gain is given by, α = I c I b ∴ I c = α × I b = 0.9 × 2 = 1.8   μ A

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