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12th Class Physics Semiconducting Devices Question Bank Semiconducting Devices Conceptual Problems

  • question_answer
    A transistor is a current operated device. Comment.

    Answer:

                        In a transistor, the collector current is con- trolled by the base current which is a part of emitter current. The changes in the emitter current are proportional to the changes in the base current and not to the input (base) voltage. Thus a transistor is a current operated device.


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