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.
Dyneema is the strongest manmade wire.
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 .
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 :)
One use for NiChrome wire is to make electrical heating elements.
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.
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.
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.
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 .
Nichrome has a high electrical resistivity.
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.
No. Other things being equal, a long wire has more resistance than a short wire.
A nichrome wire has high resistance and gets heated faster, saving electricity.
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.
Aluminium wire has high resistance than Copper.
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.
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.
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 :)
Copper wire. .wikipedia.org/wiki/Electrical_resistivity_and_conductivity