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The nominal quiescent collector current of a transistor is 1.2 mA. If the range of β for this transistor is 80 ≤ β ≤ 120 and if the quiescent collector current changes by +-10 percent, the range in value for rπ is
  • a)
    1.73 kΩ < rπ < 2.59 kΩ
  • b)
    1.93 kΩ < rπ <  2.59 kΩ
  • c)
    1.73 kΩ < rπ < 2.59 kΩ
  • d)
    1.56 kΩ  < rπ <  2.88 kΩ
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The nominal quiescent collector current of a transistor is 1.2 mA. If ...
Collector current is given by ±10%, then the range of collector current is:

Minimum collector current = 1.2 mA - (10% of 1.2 mA) = 1.2 mA - 0.12 mA = 1.08 mA

Maximum collector current = 1.2 mA + (10% of 1.2 mA) = 1.2 mA + 0.12 mA = 1.32 mA

Therefore, the range of collector current is 1.08 mA to 1.32 mA.
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The nominal quiescent collector current of a transistor is 1.2 mA. If ...
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The nominal quiescent collector current of a transistor is 1.2 mA. If the range of βfor this transistor is 80 ≤β≤120 and if the quiescent collector current changes by +-10 percent, the range in value for rπ isa)1.73 kΩ<rπ<2.59 kΩb)1.93 kΩ<rπ<2.59 kΩc)1.73 kΩ<rπ<2.59 kΩd)1.56 kΩ<rπ<2.88 kΩCorrect answer is option 'D'. Can you explain this answer?
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The nominal quiescent collector current of a transistor is 1.2 mA. If the range of βfor this transistor is 80 ≤β≤120 and if the quiescent collector current changes by +-10 percent, the range in value for rπ isa)1.73 kΩ<rπ<2.59 kΩb)1.93 kΩ<rπ<2.59 kΩc)1.73 kΩ<rπ<2.59 kΩd)1.56 kΩ<rπ<2.88 kΩCorrect answer is option 'D'. 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 The nominal quiescent collector current of a transistor is 1.2 mA. If the range of βfor this transistor is 80 ≤β≤120 and if the quiescent collector current changes by +-10 percent, the range in value for rπ isa)1.73 kΩ<rπ<2.59 kΩb)1.93 kΩ<rπ<2.59 kΩc)1.73 kΩ<rπ<2.59 kΩd)1.56 kΩ<rπ<2.88 kΩCorrect answer is option 'D'. 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 The nominal quiescent collector current of a transistor is 1.2 mA. If the range of βfor this transistor is 80 ≤β≤120 and if the quiescent collector current changes by +-10 percent, the range in value for rπ isa)1.73 kΩ<rπ<2.59 kΩb)1.93 kΩ<rπ<2.59 kΩc)1.73 kΩ<rπ<2.59 kΩd)1.56 kΩ<rπ<2.88 kΩCorrect answer is option 'D'. Can you explain this answer?.
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