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Electric charges will flow through all sorts of substances, not just metals. It is also possible for charges to go through empty space, if the voltage is high enough - especially if an electrode is heated. Read about electron tubes.
On the other hand, with a phenomenon known as capacitance, a current can flow through empty space, even if no charges flow.
What else can I help you with?
What is the term given to to the point where two opposite electrical currents meet?
node Any number of currents can meet at a node, not just two.
Is line to line voltage equal to line voltage?
Yes. By definition, a line-to-line voltage is indeed called a line voltage.For delta-connected, three-wire, systems comprise three line conductors. The line voltage is numerically equal to the phase voltage.For wye-connected, four-wire, systems comprise three line conductors and a neutral conductor. Any line-to-neutral voltage is called a phase voltage. The line voltage is 1.732 times the value of the phase voltage.
Will a ground fault interrupter work at any outlet with only 2 wires?
Yes. GFCI receptacles do not rely on a ground conductor to work. They sense any difference between current flowing in the hot wire and current returning in the neutral wire. Under normal circumstances, these two currents will be exactly the same. If there is a difference, then some of the current is flowing from the hot to somewhere else, possibly through a person to ground. This causes the GFCI to trip. The National Electric code even permits an old 2-wire receptacle with no ground wire to be replaced with a GFCI 3-prong receptacle. No ground wire is used, and the GFCI must be labeled "No Equipment Ground". See NEC Article 406.3(D)(3)(b) and (c). This is the only legal way to install a 3-prong receptacle in place of a 2-prong without running a new ground wire.
Kirchoff's law that states the sum of the currents entering the node is equal to the sum of the currents leaving the node on a parallel circuit?
KCL (Kirchoff's Current Law) applies to any circuit, not just parallel circuits. The sum of the currents entering a node will always equal the sum of the currents leaving the node. KVL states that the sum of the voltages around a closed loop is always zero.
Why is it that if you take a piece of Copper wire and plug it into a power supply it creates a short circuit but if the same wire is coiled then it acts as an inductor and doesnt make a short circuit?
=== === This answer assumes the wire is properly insulated along its length so that it does not have any shorted turns if it is wrapped around a core made of a good insulator such as wood or plastic. Whether or not it is wound into a coil the resistance of a piece of copper wire depends on how long and thin it is. The thinner and longer the wire, the higher the resistance it will have and the less current it will draw from the power source.A very short piece of thick wire will have such a low resistance it will take so much current that it will behave just like a short circuit. (Whether it is insulated or coiled even a little bit will make no difference.)If a sufficiently long length of insulated wire is made into a coil it will act as an inductor. If it is wound around a cardboard or wooden core containing a piece of iron, the iron would make the coil have a much higher inductance than for just air.
What is the main reason for connecting a ground wire to the end of a conduit being used to protect the wire?
== == Think about it. The conduit is metal, and can be touched by people. It is carrying live wires and is connected to steel junction boxes. What would happen if a hot wire accidentally touched the steel conduit? The ground wire is there to keep the conduit from going live in a fault condition. You want to ground any metal surface a user can touch in case of faults.
How do you make a radio antenna?
Any regular piece of wire will do.
Ground wire size for 200?
The size of the ground wire for a circuit is typically based on the size of the circuit breaker protecting that circuit. For a 200 amp circuit breaker, the recommended ground wire size is 4/0 AWG (American Wire Gauge) copper wire. This wire size helps ensure that the ground wire can safely carry any fault currents that may occur in the electrical system.
How could you produce a magnetic field using a wire?
Any time an electric current passes through a wire, this will produce a magnetic field. If you want to make the field stronger, loop the wire into coils. The more coils you make, the stronger the field will be.
What are car stereo wiring color codes for a 1999 subaru impreza I live in new zealand will this make any diffirence?
The 1999 Subaru stereo wiring color codes are universal. The red wire is the positive wire. The black wire is the ground wire. The green wire is the speaker wire. The white wire is the auxiliary wire.
What would make it not have any spark 1989 Honda Prelude?
Coil, distributor, bad wire.
Does a 1988 Honda 4trax 300 have a wire harness?
Yes but bonds does not make them any more
How is it best to couple wire cables to avoid damage?
It shouldn't make any difference. But if you have the time, why not.
What is the difference between electric currents and electric charge?
Electric current is a flow of electrons is a measure of the quantity of electrical charge passing any point of the wire in a unit time.And, electric current is measured in ampere (A).Whereas, electric charge is the quantity of electricity that flows in electric currents . And , it is measured in coulomb (C)
Why extra bare aluminum wire in Armored cable?
If you are asking about the aluminum strip just underneath the armour, it is for sheath bonding as it has a shorter distance from end to end than that of the spiral that makes up the armour covering.
What properties make radio waves good for communicating?
The really nice thing about radio waves is that they will make the electrons in a piece of copper wire move; this means that they generate electric currents in the wire. In fact it works both ways: alternating currents in a copper wire generate electromagnetic waves, and electromagnetic waves generate alternating currents. The electric currents at "radio frequencies" (rf) are used by radio and television transmitters and receivers. I use frequencies of 145MHz (VHF), 14MHz (20m HF) and 3.7MHz (80m HF).
How can I make a chicken wire fence?
To make a chicken wire fence, first, measure the area where you want to install the fence. Then, dig holes for the fence posts and set them in place. Attach the chicken wire to the posts using staples or zip ties. Make sure the wire is pulled tight and secure. Finally, trim any excess wire and secure the bottom of the fence to prevent animals from digging underneath.
