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It prevents the wire making contact with other wires and shorting out. It protects the wire from erosion and allows the user to identify what each wires role is within the harness
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Why would an electric wire be covered with an insulatos such as plastic?
Plastic being nonconducting, it avoids electrocution when covered around electric wire.
The combination of the magnetic field of the coiled wire and the iron create a very what magnet?
The combination of the magnetic field of a coiled wire wrapped around an iron core will create a very useful electromagnet. This is the bases used in the construction of mechanical relays.
What is the direction of the magnetic field if the current is directed upward or downward?
The direction of the magnetic field is counterclockwise or clockwise. For a current flowing in a wire you can use the "left hand rule" If you take your left hand and have the thumb point in direction of electron flow in the wire, the fingers wrapped around the wire will show the direction of the magnetic field by the direction the fingers are pointed..
Is there a voltage carrying limit of wire?
Yes it depends on many variables such as what the wire is made of the size of the wire whether the wire is a multi strand wire. What governs the amount of voltage a wire can carry is the insulation that is wrapped around the wire. Like wire with ratings of 300 volts, 600 volts and 1000 volts these are the highest allowable voltages that can be applied. A wire that is rated for 300 volts is good for 120 volts, 240 volts and 277 volts. At test research facilities, insulation is tested to destruction. The label that is given to the wire insulation as a result of the tests is the highest safest voltages that can be applied to that particular type.
What are paperclips made of?
Steel Wire in most cases but they can be made of plastic, or aluminum.
Is plastic wrapped around the electric wires is a good conductor?
Plastic wrapped around the wire is insulator. Not a conductor. That is why it is wrapped around the conductor wire.
Can a wire be wrapped around a screw clockwise or counter clockwise?
Well, it CAN be wrapped either way, but because standard screws tighten when turned clockwise:if the wire is wrapped around the screw clockwise tightening the screw will pull the wire tighter around the screwif the wire is wrapped around the screw counterclockwise tightening the screw will push the wire away from the screw making it loose and maybe even popping the wire out from under the screwSo, if you want the wire to stay secure on the screw only wrap it clockwise!
A coil of wire with an electric current in it?
A solenoid. An electromagnet is wire wrapped around a core of iron (usually). The wrapped wire itself is called the solenoid.
What is produced when a coil of wire is wrapped around an iron core?
electromagnet
Plastic is wrapped around live wire to prevent electrocution. why is plastic used to cover electrical wires?
You more or less just answered your own question. Most plastics are not good conductors, so the best path to ground for the electricity flowing in the wire is to stay in the wire rather than jumping through the plastic (poor conductor) and person (middling-to-fair conductor).
Does the strength of an electromagnet depend on the number of volts passing through the wire or the number of coils of wire wrapped around the iron core?
The strength of an electromagnet depends on: -- The magnitude of the current through the wire. (This depends on the voltage between the ends of the wire.) -- The number of turns of wire in the coil wrapped around the iron core.
What was wrapped around an iron bar to create the first electromagnet?
Coils of wire
When a current carrying wire is wrapped around an iron core what can it create?
a magnet
When a current -carrying wire wrapped around an iron core what can it create?
a magnet
What is a nail wrapped around a wire and connected to a battery called?
it is called an electromagnet
Why is a plastic coating around a wire?
For insulation.
Coils of wire wrapped around a ferromagnetic core make up a motor's?
Coils of wire wrapped around a ferromagnetic core make up a motor's armature. It carries an electrical current and rotates within a magnetic field.
