1.

The input resistance is given by _________(a) ∆VCE/∆IB(b) ∆VBE/∆IB(c) ∆VBE/∆IC(d) ∆VBE/∆IEI got this question during an online interview.I would like to ask this question from The CE Characteristics topic in division Transistor Characteristics of Electronic Devices & Circuits

Answer»

Correct answer is (B) ∆VBE/∆IB

The explanation is: The ratio of change in base emitter VOLTAGE (∆VBE) to resulting change in base current (∆IB) at constant collector emitter voltage (VCE) is defined as input RESISTANCE. This is DENOTED by RI.



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