EC > GATE 2016 SET-2 > BJT Circuits
Resistor R1 in the circuit below has been adjusted so that I1=1 mA. The bipolar transistors Q1 and Q2 are perfectly matched and have very high current gain, so their base currents are negligible. The supply voltage Vcc is 6 V. The thermal voltage kT/q is 26 mV.
The value of R2 (in Ω) for which I2=100 μA is
Explanation
Correct : 589
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