The amperage rating of a copper wire is related to its resistance and to the type of insulation used (i.e., what temperature the insulation can handle) and the ambient temperature. The fatter the copper wire, the more amps it can handle, everything else being equal. A mineral-insulated wire, buried underground, would handle more amps than a similarly sized copper wire in thermoplastic insulation in air.
There are electrician charts available to determine the MINIMUM size of copper (or aluminum) wire necessary for a particular load.
Consider also that longer the wire, the more resistance there is, so a very long wire would need to be larger to handle the same load safely.
Magnetic flux density is the amount of flux goes through a unit area. The flux density depends on the magnetizing current through the conductor.
B = μ H; (B - Flux density , H - Mag. field, μ-permeability)
Further B ∝ flux , H ∝ i
By studying BH loop you'll get an idea about the relationship (that after some H, the flux is saturated)
* The question must be changed as what's the permeabilityof Copper..... (I guess)
Only the permeabilty is a constant for a material given, here Copper. It's 1.2566290×10-6 H/m.
if you know the number of amperes and the cross sectional area you can find the current density
Current density is the amount of electrical current flowing in a unit of cross sectional area of that conductor. You'd look at the current flowing and the cross sectional area of the conductor and make a calculation from that. All you need do is decide on what unit of cross sectional area you wish to use. In wire, we usually use mils. Use the links below for more information.Density current is the measure of the density of flow of a conserved charge
A conductor is a material that allows current to easily flow.
i=F*sum(zi*Ci) where, i is the current density, F is Faradya's constant, zi is the velence of species i, Ci is the concentration
It doesn't, really. The power loss in transformers is broken down into copper loss and iron loss. The copper loss comes from the resistance of the windings in the transformer and depends on the load current, while the iron loss in the magnetic core depends on the magnetic flux density and is constant if the supply voltage is constant.
The current density for a copper busbar will vary as the size of the bar. And no, that's not a trick answer. More information about the application is needed to determine what size the busbar is, since only the ampacity was cited here. There are different specifications (sizes) for busbars, as you know. The deal is that there is usually a "temperature rise" factor that delimits what you're supposed to use. Higher temps mandate bigger bars, which you probably already figured out. The basic busbar size is set on how much heat the busbar will generate when conducting it maximun rated current. But factors regarding the thermal environment in which the unit is operating must be considered. Minimum size for 4000A is probably 1/4 x 10, but some applications will require up to 3/4 x 10 with some allowing something in between. With a specified size bar, you can easily calculate the current density by dividing the current (4000A) by the cross-sectional area. Pick one and go for it.
The density of copper is 8,960 kg/m3 or 8.96 g/cm3 at r.m.
Density is a physical property of copper.
The density of pure copper is 8,96 g/cm3.
No, copper and brass doesnot have same density.
Copper has a density of about 8.96 g/cm3 and don't float on water.
The density of copper is 8.94 grams per cm3. The mass will depend on the volume of the "lump" of copper.
'Cu' is the chemical symbol for copper. The density of copper is 8.96 gm/cm3 .
Copper has a density of 8.9 g/cm3 while iron has a density of 7.9 g/cm3. Therefore copper is denser than iron.
copper is metal, density greater than water.PVC is synthetic organic, density less than water.
density of copper = 8930 kg/m^3 & density of brass = 8700 kg/m^3 copper is heavier
The copper's density is 8.9 g/cm3
The density of this copper mass is about 8.93 g/cm3