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A small piece of copper wire acts as an antenna because of the nature of the copper and the way it reacts to the radio (electromagnetic or EM) signal that it is "feeling" as it is sitting there. An EM wave is a moving electromagnetic wave, and it "sweeps" everything in its path of travel. Some things don't react well to it, and others, like our copper wire, "feel" it with ease. The moving electromagnetic field sweeps the little copper wire and induces a voltage in it that is a "just like" the signal that is making the wire react, except that the voltage is much smaller. This tiny signal can be picked up by the electronics in the "front end" of the receiver to which the wire is attached, and it can be amplified and then demodulated to discover what is "on" the signal. If you have, say, a TV with a type "F" connector in the back (for coaxial cable) and you stick a short piece of thin copper wire in the center of the connector, it will act as an antenna and you will be able to pick up local signals (though the signal quality may not be very good). It's a simple and easy way to check the operation of a TV if you don't have any other means available. Just be careful as regards what you are doing, and don't use too large a wire.
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What is most likely to be attracted to magnet a piece of glass a balloon a plastic piece chess or a coolpper wire carrying current?
a copper wire carrying current
What is the chemical name of copper wire?
Copper. The wire is made of elemntal copper not a chemical compound. (Note the copper used may sometimes be alloyed with another metal or occasionally be a solid solution of small amounts of oxide in the pure metal. This improves the durability and handling characteristics of the wire.)
What would reduce resistance in a copper wire?
Reduce the resistance:-- Use a shorter piece of wire.-- Use thicker wire.-- Cool the wire.Increase the resistance:-- Use a longer piece of wire.-- Use thinner wire.-- File a nick in the piece of wire you have.-- Stretch the wire.-- Heat the wire.
What has the lowest resistance copper wire or iron wire?
Copper wire. .wikipedia.org/wiki/Electrical_resistivity_and_conductivity
What is the chemical formula for bare copper wire?
The chemical formula is Cu with small amount of CuO impurity.
How do you make a radio antenna?
Any regular piece of wire will do.
If you tie piece of copper wire a end of a exhaust.. what will happen?
If a person ties a piece of copper wire at the end of the exhaust pipe on a vehicle the copper is going to heat up. When the copper heats up it will turn a rainbow of colors.
Is the resistance of a 1 ft piece of copper wire the same as a 2 ft piece?
No
A horseshoe magnet is moved back and forth across a piece of copper wire an electric current is detectable in the wire?
yes, it will be very small but the inductance from the magnet should stimulate a current in the wire as it will cause electrons to move.
Can you recycle copper wire?
Yes! It's a metal, so it can be forged into something new. Of course. Copper wire contains copper. You can use a copper wire stripper to remove the insulation and you get copper core or a copper wire gramulator to make them into small copper granules after grinding and separating the insulation.
What is the best gauge copper wire to use for a radio antenna?
use a stronger wire for longer antennas...the gauge may not be as important as the strength if you string it outside.
What could you make by chopping copper wire into small pieces?
copper pieces only
Replace the power antenna on your 1994 sable wagon?
the power antenna is located on right front. I jacked my car, and removed the right front wheel. Then there are some small screws which are keep the inner fender plastic. unscrew them. You can reach with your hand the power antenna. Unplug the power wire, and the antenna wire, and unscrew those small (8mm) screws which are holding the antenna in its bracket.
What is most likely to be attracted to magnet a piece of glass a balloon a plastic piece chess or a coolpper wire carrying current?
a copper wire carrying current
What happens when a piece copper wire is heated in the outer region of the flame until its red hot?
The copper wire glows red. Once it cools...the copper reacts with the air to produce copper(II) oxide. This is shown by the black tarnish on the copper wire.
What is copper wire wirth worth for recycle?
Copper is very valuable conductor. It is a non-renewable resource with limited storage on the earth. Copper can be recycled from copper wire. You can also earn a small sum from it.
How do you get the antenna to go up with a new stereo installed if the antenna wire is connected to the stereo but the antenna won't raise now even from the switch?
The motor that raises and lowers the antenna is controlled by a wire which is connected to the power switch in the stock radio. The wire from the antenna itself has nothing to do with raising and lowering the antenna. Touch the wires that were connected to the stock radio to a hot wire and see if the antenna starts to move. If if does, hook that wire to the wire from the new radio which is supposed to control the antenna motor. If there is no such wire, connect the antenna motor wire to the Accessory circut. The antenna will go up whenever the key is turned on. Or, you can get fancy and install a switch for it.
