Myelination improves the efficiency of the central nervous system in the same way that a. talking to an infant speeds the baby's ability to produce a first word
b. reducing the distance between two children playing catch reduces the time it takes for a baseball to travel from one child to the other
c. the ingestion of certain chemicals (for example, steroids) can improve overall muscle development
d. the insulation around an electrical extension cord improves its efficiency

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).

d.7.5cm is your answer

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.