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circuit shown in Fig. P6.42, current source VBE At 25°C with ß = 100, what currents flow in R| and R2? What voltage would you expect at node E? Noting that the temperature coefficient of vgg for Ig constant is –2 mV/°C, what is the TC of vg? For an ambient temperature of 75°C, what voltage would you expect at node E? Clearly state any simplifying assumptions you make. 68 kN R, 6.8 kf OE

circuit shown in Fig. P6.42, current source VBE At 25°C with ß = 100, what currents flow in R| and R2? What voltage would you expect at node E? Noting that the temperature coefficient of vgg for Ig constant is –2 mV/°C, what is the TC of vg? For an ambient temperature of 75°C, what voltage would you expect at node E? Clearly state any simplifying assumptions you make. 68 kN R, 6.8 kf OE

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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*6.42 In the circuit shown in Fig. P6.42, current source / is 1.1 mA, and at 25°C vBE = 680 mV at ig =1 mA. At 25°C with B = 100, what currents flow in RỊ and R2? What voltage would you expect at node E? Noting that the temperature coefficient of vgg for Ig constant is –2 mV/°C, what is the TC of vg? For an ambient temperature of 75°C, what voltage would you expect at node E? Clearly state any simplifying assumptions you make. R2 68 kn R, 6.8 kf 어 Figure P6.42
Transcribed Image Text:*6.42 In the circuit shown in Fig. P6.42, current source / is 1.1 mA, and at 25°C vBE = 680 mV at ig =1 mA. At 25°C with B = 100, what currents flow in RỊ and R2? What voltage would you expect at node E? Noting that the temperature coefficient of vgg for Ig constant is –2 mV/°C, what is the TC of vg? For an ambient temperature of 75°C, what voltage would you expect at node E? Clearly state any simplifying assumptions you make. R2 68 kn R, 6.8 kf 어 Figure P6.42
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