when metal is brought near a coil of oscillator , eddy currents start to flow in metal that produce their own magnetic field which opposes the source magnetic field . Hence inductance of coil decreases .
Ahsan
what harmful changes is/are brought when a metal reac or mixes w/ acid
It is a magnet or a electro-magnet. If you are trying to use it as a metal detector then you will need a really strong magnet!
Well the metal would obviously attract a charged particle for its charge less surface. The only possible way would be placing a positively charged object on the other side of the negative charged object such that it could counter effect the coulombian pull on the negative charge due to the metal. To keep the positive charge in place it would need to place it within oppositely charged electronic plates. This needs more amendments but thats another topic. When a charged object touches metal, the end result is usually what is known as a static shock.
you can wrap a wire around a metal object and attach both ends of the wire to the battery and you metal will be magnetisedfor an amount of time.
It is at zero potential A grounded object is an object which has a path for the electricity to "complete the circuit." The object should be safe to touch, if it is grounded.
It decreases
the metal object becomes a temporary magnet
The hole decreases due to metal expansion.
its resistence considerably decreases
[object Object]
The closest album to metal that they have is I Brought You My Bullets, You Brought Me Your Love. None of them are really metal though, more punk.
Heating a metal decreases the tensile strength and increases ductility
In order to know what a metal object is on a dorm wall one would need more information. If a description of the metal object is given one may be able to determine what the object is.
No it decreases.
A semiconductor's resistivity decreases with increasing temperature. A metal's resistivity increases with increasing temperature.
Metal plating.
You need to shape it into a series of turns, as you have probably seen diagrams of a solenoid. Make as many turns as you can, but don't make the turns too tight. The inductance will be proportional to the number of turns squared, and to the area of each turn, and inversely to the length. If you put a metal rod with high permeability inside this will increase the inductance, but don't let it stick out of the ends.