Experiment Scenario: Amelia loves to play golf but hates it when her golf balls go into the water. Some brands seem to soak up so much water that they never quite make it to the green
again. She has decided to test her dad's three favorite brands of golf balls to see which brand holds
the most water and would hinder her game.
Questions: The fact that she is going to use the same kind and amount of water to submerge each
ball is an example of a
variable. The weight of each ball after soaking in water
for ten minutes is an example of the
variable. The three different brands of golf
ball she will use is an example of the
variable.

most voltage drop calculators want the distance between the source and destination. then internally, they double it so both the source and return wires are calculated. but you need to know which distance the calculator uses so you're not half of what you should be or double what you should be.

most circuit breakers will not take a #6 directly, so the electrician will have to splice on a smaller pigtail. you also have to upsize the grounding wire when you upsized the ungrounded (hot) wire (see note in 250.122). this will preclude using most cable assemblies, as a cable with #6 copper will most likely only have a #10 grounding conductor. you need a #6 grounding conductor if the circuit is 20a. a #8 cable is no better, as it will have a #10 grounding conductor too. but most 20a breakers will take a #8 directly.

in your related post, you didn't say what type of load this is. if it is a light or heater, voltage drop won't be a big issue. if this is a motor, the current needs are huge at startup and the voltage drop can pose a problem. if this is a motor, knowing if the motor is under much load during startup will answer the voltage drop effect (a saw is easier to start than a compressor).

answera compound;