A. Double Jeopardy. I honestly don't know how to explain this one it's just there lol
A copper rod becomes positively charged when rubbed with cloth. As it builds up a small amount of electrostatic charges from friction, it will begin to attract small pieces of paper. But it only lasts a short while until the rod completely loses its charge.
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Explain types and uses of copper rods ?</h3>
Busbars, transformer parts, and other common applications in the electrical industries, as well as those requiring strong corrosion resistance, such building components, are all common uses for copper bars and rods.
To guarantee that a copper rod is always suitable for your goal, our copper rods are offered in diameters ranging from 3mm to 254mm and in either imperial or metric measures. Additionally, we offer copper rods in a huge selection of flat, square, hexagonal, and circular profiles.
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Answer:
I don't have the answer but be aware there are bots spamming links do not click them!
Answer:
B
Explanation:
This was used to allow collections of coins to be threaded on a square rod so that the rough edges could be filed smooth, and then threaded on strings for ease of handling.