The purpose of resistance in the emitter circuit of a transistor amplifier is to _________________?
Correct answer: C. Limit the change in emitter current
- A. Limit the maximum emitter current
- B. Provide base-emitter bias
- C. Limit the change in emitter current
- D. None of the above
Explanation
The emitter resistor provides negative feedback: an increase in emitter current raises the emitter voltage and reduces the effective base-emitter voltage, limiting the current change. It therefore stabilizes the amplifier rather than merely setting the base-emitter bias.
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