Determine the circulating currents and device voltages for the circuit of Figure \PageIndex2 if VBB=10 V, VCC=15 V, RB=200 kΩ, RC=1 kΩ and \(\be...Determine the circulating currents and device voltages for the circuit of Figure \PageIndex2 if VBB=10 V, VCC=15 V, RB=200 kΩ, RC=1 kΩ and β = 100. The preceding example illustrates that the place to start the analysis is in the baseemitter loop instead of the collector-emitter loop. Because the brightness of an LED depends on its current level, the brightness will now depend on the β of the specific BJT used.