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Concepts Of Physics MCQ Edition [Volume 2]PhysicsSemiconductors and Semiconductor Devices

Consider the following incomplete sentence regarding transistors: The emitter–…… junction is ___ and the collector– …… junction is ___. The proper words to fill the dotted empty spaces are, respectively,

Options

  1. A'collector' and 'base'
  2. B'base' and 'emitter'
  3. C'base' and 'base'
  4. D'collector' and 'emitter'

Correct answer

C. 'base' and 'base'

Step-by-step solution

A transistor consists of three regions: emitter, base, and collector. The two junctions in a bipolar junction transistor are formed between the emitter and the base, and between the collector and the base. These are known as the emitter-base junction and the collector-base junction. For normal active operation of a transistor, the emitter-base junction is forward biased and the collector-base junction is reverse biased. Therefore, the proper words to fill the dotted empty spaces are 'base' and 'base', respectively.

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