If a permanent magnet picks up a steel paper clip, the paper clip also becomes a magnet. How does an electromagnet differ from the magnetized
paper clip?
A. An interaction between electricity and magnetism produces an
electromagnet, while a permanent magnet induces the paper clip's
magnetic field.
B. A magnet does not form when an electric current interacts with a
magnetic field, but a magnet will form when an electromagnet
interacts with a permanent magnet.
C. An interaction between electricity and magnetism induces the
paper clip's magnetic field, while an electromagnet is produced by
a permanent magnet.
D. An electric current can run through a permanent magnet to
magnetize the steel paper clip, but an electric current cannot run
through the paper clip.

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).

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~