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GATE EC 2017 Set 1 — Question 41

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NAT+2 / -0MediumCE, CB & CC ConfigurationsBJT & MOSFET AmplifiersAnalog CircuitsMidband Gain & Resistances

Analog Circuits → BJT & MOSFET Amplifiers → CE, CB & CC Configurations

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Question

For the DC analysis of the Common-Emitter amplifier shown, neglect the base current and assume that the emitter and collector currents are equal. Given that VT=25 mVV_T = 25\text{ mV}, VBE=0.7 VV_{BE} = 0.7\text{ V}, and the BJT output resistance ror_o is practically infinite. Under these conditions, the midband voltage gain magnitude, Av=∣vo/vi∣A_v = |v_o/v_i| V/V, is ________.
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