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NEET2006PhysicsSemiconductorsActual

Assertion : In common base configuration, the current gain of the transistor is less than unity. Reason : The collector terminal is reverse biased for amplification.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of the assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of the assertion
  3. CIf assertion is true, but reason is false
  4. DBoth assertion and reason are false statements.

Correct answer

C. If assertion is true, but reason is false

Step-by-step solution

The common base configuration of n-p-n transistor is used for voltage amplification. The current amplification is very small. Assertion is true. The collector is reverse biased for voltage amplification. The Reason given has not mentioned that it is voltage amplification. The Reason is therefore incomplete by itself. It is wrong.

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