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Question

Does a transistor amplify voltage?


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Solution

Explanation:

A transistor can amplify current, or voltage, or both, depending on how it is configured in the circuit.

  1. If it is configured as a common collector then it amplifies current, but not voltage.
  2. If it is configured as a common base then it amplifies voltage, but not current.
  3. If it is configured as a common emitter then it amplifies both current and voltage.

Hence, a transistor amplifies voltage if it is configured as a common base and common emitter.


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