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You can't detect the presence of electric current in a conductor
with any human sense.
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∙ 13y ago
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What is happening when an electric current in a wire increases but the resistance stays the same?
The power consumed in any circuit is calculated by the formula P=V x I and as per ohms law we know that V=I x R, so placing the value of this Voltage in the power consumption formula we get P=I2R. Thus whenever there is an increase in current in any circuit it implies that the power consumption of the load connected has increased. This may cause heat generation in the wire and possibly melt or burn the wire if the current exceeds the rated current of that wire.
Do wires electromagnetic?
Any wire that carries a current will have a magnetic field.
Is there any current flow through the neutral wire of single phase motor?
Yes. It is identical to the line current.
Describe how a battery can create a current in a conducting wire?
The battery produces a voltage; if a conducting wire - or any circuit for that matter - is connected, a current will flow according to Ohm's Law, that is, the current is calculated as voltage / resistance.
In India we have two wires come in our homes do both carry current?
Any circuit has at least two conductors. Otherwise, by Kirchoff's current law, there would be no current, therefore no power, therefore no work. The current coming on one wire is exactly balanced by the current going out on the other wire. If there is a third wire/connection, such as a ground wire, it is possible for current to flow on that conductor as well but, usually, there is no current expected to flow on the (safety) ground conductor.
What effect does current have on a wire?
Insulation or a lawsuit. Just kidding (sort of). A magnetic field forms around the wire, because magnetic field are formed any time electric charge moves.
How many amps for 14 wire how many amps for 12 wire?
#14 copper wire is rated at 15 amps, # 12 copper is rated at 20. The maximum capacity of any wire is 80% so remember to derate your current by multiplying the rated current by .8
Why does an electric wire get hot when current passes through it?
Because the wire has resistance.The power (number of watts) dissipated by any resistance when current passes through it is(the number of amperes of current)2 multiplied by (the number of ohms of resistance).To reduce the power lost from the wire, the choices are:-- reduce the current passing through the wire-- use thicker wire-- keep the wire as cold as possible.(If the wire is made of the right material, and you make it cold enough,then all of its resistance disappears, and it's called a "superconductor".)
Why does a wire get hot when an electric current passes through it?
Because the wire has resistance.The power (number of watts) dissipated by any resistance when current passes through it is(the number of amperes of current)2 multiplied by (the number of ohms of resistance).To reduce the power lost from the wire, the choices are:-- reduce the current passing through the wire-- use thicker wire-- keep the wire as cold as possible.(If the wire is made of the right material, and you make it cold enough,then all of its resistance disappears, and it's called a "superconductor".)
What is the wire size for 208 volt?
As with any electrical installation, the wire size used depends on the expected maximum current the wire will carry. That cannot be determined by voltage alone.
How you could use a wire and a battery to create a manetic field?
Any current will produce a magnetic field. If you let a current pass through the wire, you got your magnetic field.Note: If you connect the wire directly to the battery, without any resistance, you'll most likely destroy the battery, due to a short circuit.
What form around a wire carrying an electric current?
Electromagnetic fields form around any current carrying conductor.
