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Semiconductors and Semiconductor Devices — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductors and Semiconductor Devices1 Mark
Question
An incomplete sentence about transistors is given below:
The emitter ...... junction is ....... and the collector ..... junction is ..... The appropriate words for the dotted empty positions are, respectively.
  1. 'Collector' and 'base'.
  2. 'Base' and 'emitter'.
  3. 'Collector' and 'emitter'.
  4. 'Base' and 'base'.
✓

Answer

  1. 'Base' and 'base'.
Explanation:

In transistors, the emitter−base junction is forward biassed and the collector−base junction is reverse biassed. This is done to make majority carriers cross the emitter−base junction; this helps the electric current to flow through the transistor.

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