Extraction of bipolar SPICE Gummel-Poon parameters related to reverse Gummel (Ie and Ib vs. Vbc) 
1. What two currents are plotted against the base-collector voltage in a standard reverse Gummel plot?
2. What is the standard bias condition for the base-emitter junction when measuring a reverse Gummel plot?
3. By extrapolating the ideal (mid-current) logarithmic emitter current curve back to zero base-collector voltage, which fundamental Gummel-Poon parameter is extracted?
4. The parameter `BR` (Ideal Maximum Reverse Beta) is extracted from the reverse Gummel plot by:
5. Which SPICE parameter models the *magnitude* of the non-ideal base-collector recombination current, which dominates the base current curve at low base-collector voltage?
6. The ideality factor (slope) of the non-ideal base current at low base-collector voltage is modeled by which parameter?
7. The slope of the ideal logarithmic emitter current versus base-collector voltage curve (ideality factor) is primarily determined by which parameter?
8. For a typical, asymmetrical BJT, how does the extracted Ideal Reverse Beta (`BR`) compare to the Ideal Forward Beta (`BF`)?
9. The roll-off (bending) of the logarithmic emitter current curve at high currents is modeled by the `IKR` parameter, which accounts for what physical effect?
10. At high currents in the reverse Gummel plot, both the emitter current and base current curves roll off due to parasitic voltage drops across which *two* resistors?