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Resistance goes up creating more heat which eventually leads to an open circuit.

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What happens to the resistance of a common ohmic resistor when it is heated?

When a common ohmic resistor is heated, its resistance typically increases.


What happens to its resistance when an electrical device is heated?

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).


What happens to the resistance of a metal when it is heated?

its resistence considerably decreases


What happens to the electrical conductivity of a metal when it is heated?

it wil expand


What happens if a thermistor is heated?

the thermistors respond negatively to the temperature and their resistance decreases with the increase in temperature. Since the resistance of thermistors is dependent on the temperature, they can be connected in the electrical circuit to measure the temperature of the body. Read more: http://www.brighthub.com/engineering/mechanical/articles/53511.aspx#ixzz1FeUDkOgw


What happens to copper wire when heated?

When copper wire is heated, it expands due to thermal expansion. As it gets hotter, the electrons in the copper atoms move more freely, increasing electrical resistance. Excessive heating can cause the copper wire to melt and ultimately vaporize.


What happens to the resistance of a copper wire when it is heated?

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.


Why filament gets heated?

Filament gets heated when an electric current passes through it, causing resistance in the filament wire. The resistance converts electrical energy into heat energy, which then causes the filament to reach high temperatures and emit light.


Why the water gets heated when current is passed through carbon rods in it?

The carbon rods have electrical resistance. Thisi causes them to heat when current is passed through them. The water gets heated by the carbon rods.


What happens when you cool a magnet?

Cooling a magnet can cause the atoms within it to align more uniformly, increasing its magnetic strength. At very low temperatures close to absolute zero, some materials can become superconducting, meaning they can conduct electricity with zero resistance and maintain a strong magnetic field indefinitely.


What are some examples of conductors which pass electricity when heated?

light bulbs


What is see back effect?

The Seebeck effect is a phenomenon in which a temperature difference between two dissimilar electrical conductors or semiconductors produces a voltage difference between the two substances. When heat is applied to one of the two conductors or semiconductors, heated electrons flow toward the cooler one. If the pair is connected through an electrical circuit, direct current (DC) flows through that circuit.