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For circuit shown in figure IE = 4 mA, IB = 40 µA. What are the values of ex, and le respectively? -

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Question

For circuit shown in figure IE = 4 mA, IB = 40 µA. What are the values of ex, and le respectively?

   

Options

  • 0.99, 3.96 mA

  • 0.97, 4.04 mA

  • 1.01, 3.96 mA

  • 0.99, 4.04 mA

MCQ

Solution

0.99, 3.96 mA

Explanation:

IE = IB + IC ⇒ IC = IE - IB

⇒ IC = 4 - 0.04 = 3.96 mA

∴ α = `"I"_"C"/"I"_"E" = 3.96/4 = 0.99`

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