Question:
For transistor action, which of the following statements is correct ?
For transistor action, which of the following statements is correct ?
Updated On: Apr 14, 2025
- Base, emitter and collector regions should have same doping concentrations.
- Base, emitter and collector regions should have same size.
- Both emitter junction as well as the collector junction are forward biased.
- The base region must be very thin and lightly doped.
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The Correct Option is D
Solution and Explanation
For Bi-polar junction transistor,
Length profile is $L_{C}>\,L_{E}>\,L_{B}$
and doping profile is $E>\,C>\,B$
Length profile is $L_{C}>\,L_{E}>\,L_{B}$
and doping profile is $E>\,C>\,B$
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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.