What is advantage of enameled wire?
Enamel wire is an excellent insulation material for copper wires because of its high . breakdown potential, its high electrical resistance, its slight absorption of water, its unusual thinness and its good mechanical and chemical properties. In this article details are given about these properties of enamel wire.Copper has better conductivity than aluminium, so its heat losses are lower. Making connections to a cooper winding is easier than doing it to an aluminium winding wire. On turn aluminiun is lighter that cooper and its heat capacity is about three times the one of copper, this allowing aluminiun to whistand better current overloads.These enamelled copper wire wires have an outer layer of bond able material which is usually thermoplastic and bonds the wires surfaces with each other once heated to the bonding temperature of the outer layer.The advantage of enameled aluminum wire is light weight isthe weight of copper wire. enameled aluminum wire product is widely used inelectrical tools, ballasts, automotive electronics, refrigeratorand air conditioner compressor motors, television sets, electricstove, microwave ovens, various transformers, and other kinds ofelectronic coil motors, electrical appliances.
Can I use copper wire as a heating element?
Yes you can use copper wire as a heating element . The generation of heat is dependent of things (according to joul's law , power transfer to heat is [math]i^2 *r[/math] ) one you have to increase the current and other you have to increase the resistance.● first come to the possibility of increase the r current as we know that the resistance of the copper wire is low , more charge will be passing by the conductor . result more heat will generate. so for current circulation the cu wire is ideal and economical.● second we can increase the value of resistance, to increase the value of a resistance of a wire the temperature play a big role as the temp is increase the resistance also increase. the increasing of temp is depemd on the temp coefficient. cu is the high temp coefficient meterial so you can easily go with it but for the better results you may use NICHROME WIRE .
What is the difference between copper wire and magnet wire?
I am late to answer, without repeating what others have written.Copper is used in motor windings, transformer windings, induction coils, The insulation may be a thin film of varnish called enamel, a fibrous polyester or fiberglass yarn; or a combination of both enamel and fibrous insulations. The fibrous insulation may be impregnated with a varnish to bind the insulation to the conductor and enhance thermal endurance. If it is bare copper then, windings will result in short circuit, so an enamel coat is applied which acts as insulator & makes winding possible. This is done by making the copper dip in to enamel solution as it is “drawn” to required thickness / diameter and allowed to cure. Such enamelled / insulated copper wire is called magnet wire.However, Bare copper is used in electrical wiring & connections including grounding / earthing.Magnet wire is also called winding wire. There are a number of film insulation types ranging from temperature Class 105 to Class 240. Each film type has its own unique set of characteristics to suit specific needs of the applicationMagnet wire shelf life is not established in commercial specifications. As long as the wire has been carefully stored it may be usable for years to come. Bondable wire should not be stored at temperatures exceeding 100°F. Electrolytic tough pitch copper (ETP Copper, UNS C11000) exceeds 99.9% purity and is the most widely used type for magnet wire production. It is intentionally oxygenated (200-400 ppm) to achieve the best combination of conductivity, capacity for being cold worked and economy. MWS can also supply wire made from high purity (99.95%) OFHC Copper (UNS C10200) or Certified (99.99%) OFHC Copper (UNS C10100).
How many turns should a coil have if is made of an enameled 6 mm thick wire and wound over a 34 mm diameter air core so it self-resonate at 106,4 MHz?
Why these strange limitations such as having self-resonance at a specific frequency, or that the air core should have some exact diameter? Even the wire size is a surprise, I call 6 mm diameter wire “rod”.Anyway, usually if we want an exact resonant frequency we put a capacitor across the coil and tune the frequency after the circuit is complete. If you have the coil wound to a self-resonance the frequency of resonance would drop as soon as the circuit board and semiconductors capacitances come into play and everything would be better for a lower frequency. Maybe there is a perfectly good reason for what you propose but maybe it is better if the advice given here were aimed toward better reaching your goal. whatever that may be.
A solenoid is simply a coil of copper wire with a lot of turns.Why does short circuit not occur when a solenoid is connected to a battery?
Thanks for the A2A. There's two apparent issues to one who does not know about these things.. One is that it appears that the wire is just a short, but because of the length and thins wires are used, the coil may have s significant DC resistance. It will be several ohms usually, quite measureable. And yes there will be considerable current flow as a result. That's why solenoids are high current devices usually the higher power ones can't be left on for very long or they will overheat. The other that the current will just jump right across the rows of coils rather than going the whole length of the winding.Tim Hofstetters answer to this is 100% right on, there's a thin enamel insulation on the wire before its wound and an additional layer is usually vacuum impregnated over that.
Can I use copper wire for making a 10 MH inductor?
For the answer first want magnetic field intensity in case of a solenoid is given asB=(mu) nimu (permeability) is taken maximum of the order of 0.1 MKS unitn=no of turn per metre =10^7ThusB=10^6iand I can have any value. Also we have relationMag flux phi=BAThus from above we haveL=(10^6)A Henry=1MHIf we have A=1 Sq m. This way to form a coil of 1MH ,radius of solenoid comes out about 56 cm.For 10^7 turn of wire on a solenoid of 56 cm of radius , a huge length (about 3520 km of wire) is required. Here no of turns hypothetically have been taken. For 10MH coil the length of the wire would be ten times that of aforesaid value. It is impossible in other words.
Is the metal of soldering iron and fuse wire the same?
In general no.Most electrical solder is either 60/40 Tin/Lead or lead free alloy of Tin, Copper, Silver , Bismuth, indium, Zinc, Antimony,and traces of other things.Most fuses wires are copper or silver plated copper, although there are some variants depending on the speed required by the circuit, including some solder for purpose built slow blow fuses.