Switching a transistor to a CB configuration from a CE configuration while maintaining bias voltages causes IE, IB, and IC to undergo____________?
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Answer: A. remain the same
Explanation
Switching a transistor configuration alters external terminal connections and signal paths without changing internal DC bias points. External biasing resistors and power supplies establish fixed emitter, base, and collector direct currents independently. Consequently, transitioning between common base and common emitter setups leaves IE, IB, and IC completely unchanged. Transistor DC biasing networks determine the stable operating point required for proper linear signal amplification. Terminal currents depend strictly on semiconductor physics and external resistor values rather than schematic layout geometry. Bipolar junction transistors maintain consistent DC operating currents regardless of how their signal ports are grounded.
Assuming bias currents increase is incorrect because external power supplies and resistors rigidly fix current levels. Believing that currents decrease contradicts the fundamental role of external DC biasing networks in transistors. Selecting none of the above is wrong because the correct answer states that currents remain the same.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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