its resistence considerably decreases
It shortens
Double the area means half the resistance. Resistance = resistivity times length / area. Resistivity is a property of the material only.
depends on what you are conducting but generally a metal is a universal conductor. if it conducts electricity well then it will conduct heat well. some metals are better than others and you can figure this out by resistance values of the type of metal. more resistance makes it a less efficient conductor. insulators have very high resistance.
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0.1M ohms
The resistance of a copper wire increases when it is heated. This is because heating the wire causes the metal ions to vibrate more, increasing collisions with the electrons and hindering the flow of current, therefore increasing resistance.
When a common ohmic resistor is heated, its resistance typically increases.
it wil expand
It heats up
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The metal increases in hardness, a mechanical property. The process which transforms the metal hardness is called "quenching".
Resistance goes up creating more heat which eventually leads to an open circuit.
The electrical resistance in a common piece of metal such as copper wire would increase. This happens because as temperature increases the atoms of the metal vibrate quicker and to a larger extent resulting in a greater number of collisions for electrons moving along the metal.
It will bend eventually because u have heated it up so much it wouldn't be able to function It becomes molten like the lava in the earth.
When a metal plate with a circular hole is heated, the metal expands due to the increase in temperature. As a result, the size of the hole also expands slightly. This phenomenon is known as thermal expansion.
That will depend on the temperature coefficient of resistance of the device, which could be positive (i.e. resistance increases with increasing temperature), negative (i.e. resistance decreases with increasing temperature), or zero (i.e. resistance is unaffected by temperature changes).
No, the volume of a metal increases as it is heated. It expands.