Final answer:
The question cannot be answered without additional information on the length and diameter of the wires Ra to Re. Resistance depends on the material, length, and cross-sectional area of the wire. In series, resistances add up, and in parallel, each device draws individual current.
Step-by-step explanation:
To rank the resistances of wires from largest to smallest, we need to understand that resistance in wires depends on material, length, and cross-sectional area. In the absence of specific length and diameter information, we cannot rank Ra to Re accurately. However, we can use general principles of resistance to answer related questions.
The resistance, R, of a uniform wire is given by the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. So if all other factors are equal, a longer wire or a wire with a smaller cross-sectional area will have a higher resistance. Moreover, when resistors are connected in series, their resistances add up, so for example, the total resistance of three resistors in series with resistances of R1, R2, and R3 would be R1 + R2 + R3.
When dealing with parallel circuits, such as when multiple devices are plugged into the same outlet, each device draws its own current, and the total current is the sum of the currents through each device.