Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > For a power transistor, if the base current I...
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For a power transistor, if the base current IB is increased keeping VCE constant, then
- a)IC increases
- b)IC decreases
- c)IC remains constant
- d)none of the mentioned
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
For a power transistor, if the base current IBis increased keeping VCE...
Ic is directly proportional to Ic.
Most Upvoted Answer
For a power transistor, if the base current IBis increased keeping VCE...
Explanation:
In a power transistor, there are three regions namely emitter, base, and collector. The base current IB controls the current flow between the collector and emitter terminals. When current flows through the base terminal of the transistor, it starts to conduct and allows a large current to flow between the collector and emitter.
When the base current is increased keeping VCE constant, the following happens:
• The number of electrons in the base region increases.
• The number of holes in the emitter region increases.
• As a result, the number of electrons in the collector region increases.
Due to this, the collector current IC also increases. Therefore, option A is the correct answer.
In summary, the increase in base current causes an increase in the number of electrons in the collector region, which in turn increases the collector current.
In a power transistor, there are three regions namely emitter, base, and collector. The base current IB controls the current flow between the collector and emitter terminals. When current flows through the base terminal of the transistor, it starts to conduct and allows a large current to flow between the collector and emitter.
When the base current is increased keeping VCE constant, the following happens:
• The number of electrons in the base region increases.
• The number of holes in the emitter region increases.
• As a result, the number of electrons in the collector region increases.
Due to this, the collector current IC also increases. Therefore, option A is the correct answer.
In summary, the increase in base current causes an increase in the number of electrons in the collector region, which in turn increases the collector current.
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For a power transistor, if the base current IBis increased keeping VCEconstant, thena)ICincreasesb)ICdecreasesc)ICremains constantd)none of the mentionedCorrect answer is option 'A'. Can you explain this answer?
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