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If you have circuit that contains resistors in parallel, what would be the advantage of finding their equivalent resistance when performing circuit analysis? So that you can easily find the current through the resistors using a single Ohm's Law calculation. So that you can alter the circuit and reduce the number of resistors used. So that you don't have to write a bunch of KCL & KVL equations to find their individual resistances. So that you can apply a current divider expression to find the voltage across each resistor.

5. The resistors, labeled A through F, in the following circuit represent incandescent lightbulbs which are dimmable. By "dimmable," we mean the amount of light a bulb produces is proportional to the voltage across the bulb (or, correspondingly, the current through the bulb). The resistances of all these bulbs is constant and they all have the same resistance. Assuming the voltage source is sufficient to cause all these bulbs to produce at least some illumination, rank the bulbs from brightest to dimmest (if two bulbs are equally bright, note this fact). Justify your answer. You should be able to do this without using equations. (However, if you want to resort to an equation or two to help you sort this out or discuss your solution, that's okay.) V₂ + B E www www F M