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For the given circuit, input resistance RI = 20Ω, hfe = 50. Output resistance = ∞. Find the new values of input and output resistance, if a base resistance of 2kΩ is added to the circuit.(a) RI = 20Ω, RO = ∞(b) RI = 20Ω, RO = 2kΩ(c) RI = 59Ω, RO = ∞(d) RI = 59Ω, RO = 2kΩThis question was posed to me in an online quiz.My doubt stems from Hybrid Equivalent Model topic in chapter Transistor Biasing and Low Frequencies of Analog Circuits |
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Answer» The correct answer is (c) RI = 59Ω, RO = ∞ |
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