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Why does the charge flow through the copper wire but not the plastic coating that covers it?
Wiki User
∙ 11y ago
Because plastic is Not Metal and the penny is.
Wiki User
∙ 11y ago
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Why it is easy to charge polythene by rubbing but not copper?
When you rub plastic, you transfer electrons from one material to the other. ... Because plastic is an insulator, the electrons cannot flow through it so they effectively get stuck there they are static
How does pennies get rusted?
Pennies are made of zinc and other alloys with a copper coating, pennies made before 1964(or around this year) they were made of just copper. What you see on a penny is not rust but corrosion of the copper coating.
When you place iron in copper sulphate solution reddish brown coating form on the nail is?
Copper
What is the name of the black coating that forms on the surface of copper?
copper oxide. when it reacts with the oxygen in the air it produces copper oxide
What is the chemical name for the black coating on an old coin?
copper oxide
Why it is easy to charge polythene by rubbing but not copper?
When you rub plastic, you transfer electrons from one material to the other. ... Because plastic is an insulator, the electrons cannot flow through it so they effectively get stuck there they are static
What is the chemical name for a green coating on a coin?
For copper or some copper alloys coins the coating is hydrated copper carbonate.
What is the plastic coating on the wire called?
Plastic or rubber is used as insulation around electrical wires, keeping them from contacting other parts of a circuit, and from grounding out to conductive materials. Where insulation is removed or damaged, a spark or short could cause fires or other damage.
What is the name of the black coating that forms on the surface of the copper?
Copper oxide
What object uses both an insulator an conductor?
Elecrical wire is an great example of this. the copper wiring is the conductor of electrons and the plastic coating insulates the wire absorbing some heat from friction and it's impermeable to electrons not allowing them through outside the wire.
What are telephone made of?
Mainly all telephone wires are made of copper with a plastic coating for insulation. Older form of telephone wire had a paper or pulp insulation over the copper wire. They are also a twisted pair cable.
What year was penny changed in amount of copper?
Midway through 1982, the composition of the US penny changed from 95% copper and 5% zinc to 97.5% zinc and 2.5% copper (in the form of a coating of pure copper over a core of zinc).
What are telephone wires made of?
Mainly all telephone wires are made of copper with a plastic coating for insulation. Older form of telephone wire had a paper or pulp insulation over the copper wire. They are also a twisted pair cable.
What is th ionic charge of copper?
Copper has 1+ charge, but there is Cu2+ ---> copper (II).
How does pennies get rusted?
Pennies are made of zinc and other alloys with a copper coating, pennies made before 1964(or around this year) they were made of just copper. What you see on a penny is not rust but corrosion of the copper coating.
What metal is used in household electric wiring?
Yes, because to conduct electricity you need a metal wire, (usually copper). However they have a plastic outer coating (sheath) which protects them and insulates them.
What type of cable consists of a single copper wire surrounded by at least three layers an insulating material and woven or braided metal and a plastic outer coating?
The description if that of "coaxial cable".
