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Because copper conducts electricty, so if you touch it it would shock you. Also, copper is a type of metal.
Insulator
the wire contain copper witch is the best metal in transferring electricity
insulator
It depends what the peg is made of. Mine are mostly plastic or wood, which are insulators. However, many have metal springs, and metals conduct.
A wire is a conductor. It is usually coated with an insulator to isolate the current flowing in the conductor portion of the wire from other things around the wire, like your hand.
Glass has excellent insulation characteristics
A metal wire is a conductor. It is the plastic layer round the wire that is an insulator.
A good insulator would be rubber or plastic.
silver
A metal key would conduct electricity.
An iron core and copper wire (that is coated with an insulator) are used all the time to make electromagnets.
conductorThe core of a wire is the center, the metal part. And insulator is the wrapping on the outside, and it makes sure that the electricity doesn't harm you. Electricity must have a conductor to work, and metal is an excellent conductor.
It is a conductor. Most keys are made of metal, and Metal is one of the best conductors in existence. A conductor being something that accepts electricity, such as a copper wire, and an insulator something that doesn't let it through, such as rubber.
it makes a good conductor because it is steel, but not so great as an insulator. this is simply because there is space between the fibers on the outside, and that something could come in contact with the steel wire.
Because copper conducts electricty, so if you touch it it would shock you. Also, copper is a type of metal.
Insulator