Question:
When npn transistor is used as an amplifier, then
When npn transistor is used as an amplifier, then
Updated On: May 17, 2024
- electrons move from collector to base
- holes move from base to emitter
- electrons move from base to collector
- electrons move from emitter to base.
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The Correct Option is C
Solution and Explanation
In n-p-n transistor, the electrons are majority carriers in emitter, which move from base to collector while using n-p-n transistor as an amplifier.
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Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.