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In a common base transistor circuit, the current gain is 0.98. On changing emitter current by 5 mA, the change in collector current is​
  • a)
    0.196 mA
  • b)
    2.45 mA
  • c)
    4.9 mA
  • d)
    5.1 mA
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In a common base transistor circuit, the current gain is 0.98. On chan...
Given, That the current gain is 0.98
The change in emitter current is Ie​=5mA
Therefore, the change in collector current is Ic​=0.98×Ie​=0.98×5=4.9mA
Therefore, the correct option is C.
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In a common base transistor circuit, the current gain is 0.98. On chan...
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In a common base transistor circuit, the current gain is 0.98. On chan...
Explanation:

In a common base transistor circuit, the current gain (β) is defined as the ratio of the change in collector current (∆IC) to the change in emitter current (∆IE). Mathematically, β = ∆IC / ∆IE.

Given that the current gain (β) is 0.98. This means for every 1 mA change in emitter current, the change in collector current is 0.98 mA.

Finding the change in collector current:

To find the change in collector current (∆IC) when the emitter current (∆IE) changes by 5 mA, we can use the formula: ∆IC = β * ∆IE.

Given that ∆IE = 5 mA and β = 0.98, substituting these values into the formula we get: ∆IC = 0.98 * 5 mA = 4.9 mA.

Therefore, the change in collector current (∆IC) is 4.9 mA.

Answer:

The correct answer is option C) 4.9 mA.
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In a common base transistor circuit, the current gain is 0.98. On changing emitter current by 5 mA, the change in collector current is​a)0.196 mAb)2.45 mAc)4.9 mAd)5.1 mACorrect answer is option 'C'. Can you explain this answer?
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In a common base transistor circuit, the current gain is 0.98. On changing emitter current by 5 mA, the change in collector current is​a)0.196 mAb)2.45 mAc)4.9 mAd)5.1 mACorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In a common base transistor circuit, the current gain is 0.98. On changing emitter current by 5 mA, the change in collector current is​a)0.196 mAb)2.45 mAc)4.9 mAd)5.1 mACorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a common base transistor circuit, the current gain is 0.98. On changing emitter current by 5 mA, the change in collector current is​a)0.196 mAb)2.45 mAc)4.9 mAd)5.1 mACorrect answer is option 'C'. Can you explain this answer?.
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