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In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5KΩ when connected in collector circuit. Find the base current.
  • a)
    0.01mA
  • b)
    0.07mA
  • c)
    0.02mA
  • d)
    0.05mA
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In CB configuration, the value of α=0.98A. A voltage drop of 4.9...
Given data:
- α = 0.98
- Voltage drop across resistor (VR) = 4.9V
- Resistance (R) = 5KΩ

Calculations:
- Collector current (IC) = VR / R
- Using the formula IC = α * IB, where IB is the base current
- IB = IC / α
- IB = 4.9V / 5KΩ / 0.98
- IB = 0.01mA = 0.01mA
Therefore, the base current is 0.01mA or 0.01mA. Hence, the correct answer is option C.
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Community Answer
In CB configuration, the value of α=0.98A. A voltage drop of 4.9...
Here, IC=4.9/5K=0.98mA
α = IC/IE .So,
IE=IC/α=0.98/0.98=1mA.
IB=IE-IC=1-0.98=0.02Ma.
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In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5K when connected in collector circuit. Find the base current.a)0.01mAb)0.07mAc)0.02mAd)0.05mACorrect answer is option 'C'. Can you explain this answer?
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In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5K when connected in collector circuit. Find the base current.a)0.01mAb)0.07mAc)0.02mAd)0.05mACorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5K when connected in collector circuit. Find the base current.a)0.01mAb)0.07mAc)0.02mAd)0.05mACorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5K when connected in collector circuit. Find the base current.a)0.01mAb)0.07mAc)0.02mAd)0.05mACorrect answer is option 'C'. Can you explain this answer?.
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