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NEET2015PhysicsSemiconductorsActual

The current gain for a transistor working as common-base amplifier is 0.96 . If the emitter current is 7.2 ~mA , then base current is

Options

  1. A0.35 ~mA
  2. B0.29 ~mA
  3. C0.39 ~mA
  4. D0.43 ~mA

Correct answer

B. 0.29 ~mA

Step-by-step solution

aligned & = I_C I_E & I_C= I_E=0.96 7.2=6.91 ~mA & Now, I_E=I_C+I_B & I_B=I_E-I_C=7.2-6.91=0.29 ~mA aligned

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