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Nichrome wire has such high resistance that it is used to convert electrical energy into heat. Many heating elements are made from nichrome. Copper wire has the best conductivity, for the price, of any metal.
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∙ 15y ago
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∙ 14y agoDyneema is the strongest manmade wire.
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Why is a copper wire in a closed circuit does not get heated but a nichrome does?
this is because copper wire offers no resistance and thus electric current passes through them without producing heat energy whereas in nichrome offers a large resistance and thus the mechanical energy of the drifting electrons changes to heat energy rapidly .
Will a nichrome wire light up when heated?
Nichrome is a name for a nickel- chromium resistance wire, a nonmagnetic alloy of nickel and chromium. Common alloy is 80% nickel and 20% chromium, by weight. Silvery-grey in colour, corrosion resistant and has a high melting point of 1400 C (2552 F). Due to it's high resistivity and resistance to oxidation at high temperatures, it's widely used in heating elements, such as in hair dryers, electric ovens and toasters. Typically, Nichrome is wound in wire coils to a certain electrical resistance, and current passed through to produce heat. For heating, resistance wire must be stable in air when hot. Nichrome wire forms a protective layer of chromium oxide. Kimber :)
How do you use NiChrome wire?
One use for NiChrome wire is to make electrical heating elements.
What is nichrome?
Nichrome is a metal alloy containing nickel and chromium, hence the name, usually 80 percent nickel, 20 percent chromium. A nichrome wire loop is a length of wire from this metal with a little loop twisted into one end and a handle attached to the other. You can stick the loop in a flame and not hurt it. These are used in biology to transfer microorganisms to culture media, and in chemistry to do flame tests.
When was nichrome discovered?
Nichrome was commercialized in 1905. It has found major purposes in the industrial applications due to its intense resistance to oxidation property at the high temperature ranges. It is offered in the various forms like nichrome strip, wire, sheet, tubing, rod and wire mesh.
Does copper conduct electricity better than nichrome?
yes it does -------------------- You might say they are polar-opposites. Copper is specifically used where low resistance is desired. NiChrome is often used as a resistance wire. For example, model rocket engines utilize nichrome wire to ignite the fuel because the resistant wire will glow red-hot when electric power is applied.
Why is a copper wire in a closed circuit does not get heated but a nichrome does?
this is because copper wire offers no resistance and thus electric current passes through them without producing heat energy whereas in nichrome offers a large resistance and thus the mechanical energy of the drifting electrons changes to heat energy rapidly .
Why does nichrome get hot?
Nichrome has a high electrical resistivity.
Which element are used as an electric heater filament?
Nichrome wire is commonly used for resistance wire for heater elements and it is a non-magnetic alloy of two elements nickel and chromium. It has high resistance and resists oxidation. The electrical resistivity is about 65 times that of copper.
Does a short copper wire have more resistance then a long one?
No. Other things being equal, a long wire has more resistance than a short wire.
Why is nichrome used for heating element in a toaster?
A nichrome wire has high resistance and gets heated faster, saving electricity.
Can copper and alluminium wire of same length and diameter have same resistance?
For a single temperature, yes. The copper wire will have a much smaller cross-section than the iron wire. For multiple temperatures, no. Copper and iron have different temperature coefficients for resistivity.
Which material has a greater resistance aluminum or copper wire?
Aluminium wire has high resistance than Copper.
Why does the nichrome wire get heated first than copper wire?
Because Copper is an excellent conductor of electricity it would take too much copper wire to make an element having sufficient resistance to fit into the small space provided in any normally-sized electric heater. For that reason heating elements must be made from metals which have a much higher electrical resistance than Copper. Special alloys of metals such as Iron, Cobalt, Nickel, Zinc and Manganese have been invented for this purpose.
Is the definion of a metal easily transmits electricity?
No. Most metals can conduct energy well (energy implying includes electricity and heat). However, some, such as nichrome (an alloy of nickel and chromium) conduct electricity very poorly. Nichrome has a high resistance and therefore, when electricity is chanelled through nichrome wire, resistance in the wire causes it to heat up.
Will a nichrome wire light up when heated?
Nichrome is a name for a nickel- chromium resistance wire, a nonmagnetic alloy of nickel and chromium. Common alloy is 80% nickel and 20% chromium, by weight. Silvery-grey in colour, corrosion resistant and has a high melting point of 1400 C (2552 F). Due to it's high resistivity and resistance to oxidation at high temperatures, it's widely used in heating elements, such as in hair dryers, electric ovens and toasters. Typically, Nichrome is wound in wire coils to a certain electrical resistance, and current passed through to produce heat. For heating, resistance wire must be stable in air when hot. Nichrome wire forms a protective layer of chromium oxide. Kimber :)
What has the lowest resistance copper wire or iron wire?
Copper wire. .wikipedia.org/wiki/Electrical_resistivity_and_conductivity
