Bipolar Junction Transistors (BJT) When a silicon diode is forward biased, what is VBE for a C-E configuration? voltage-divider bias emitter voltage 0.7 V 0.4 V None What is the current gain for a common-base configuration where IE = 4.2 mA and IC = 4.0 mA? 16.80 1.05 0.20 0.95 None A collector characteristic curve is a graph showing emitter current (IE) versus collector-emitter voltage (VCE) with (VBB) base bias voltage held constant collector current (IC) versus collector-emitter voltage (VCE) with (VBB) base bias voltage held constant collector current (IC) versus collector-emitter voltage (VC) with (VBB) base bias voltage held constant collector current (IC) versus collector-emitter voltage (VCC) with (VBB) base bias voltage held constant None If a 2 mV signal produces a 2 V output, what is the voltage gain? 0.001 0.004 100 1000 None The total emitter current is: IE – IC IC + IE IB + IC IB – IC None Which is the higher gain provided by a C-E configuration? voltage power resistance current None Often a common-collector will be the last stage before the load; the main function(s) of this stage is to: provide voltage gain provide phase inversion provide a high-frequency path to improve the frequency response buffer the voltage amplifiers from the low-resistance load and provide impedance matching for maximum power transfer None What is the collector current for a C-E configuration with a beta of 100 and a base current of 30 A? 30 uA 3 uA 3 mA 3Ω A None The input/output relationship of the common-collector and common-base amplifiers is: 270 degrees 180 degrees 90 degrees 0 degrees None If VCC = +18 V, voltage-divider resistor R1 is 4.7 kΩ, and R2 is 1500Ω, what is the base bias voltage? 4.70 V 4.63V 4.4V 4.35V None Time's up
