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An electrical current is simply the flow of free electrons in and on the conductors. So they are a bit like water molecules in a garden hose. And like those water molecules the flow of free electrons can be physically impeded by whatever is in or on the electrical conductor.
When a material is a good conductor, the atoms and molecules of that good conductor do not get in the way of the free electrons. They do not resist the flow of those electrons very much. So even with just a low voltage to push the electrons along, the flow, the current of the electrons is high.
But when a material is a bod conductor, the atoms and molecules of that bad conductor do physically get in the way of those free electrons so that they cannot flow freely through the conductor. The resistance is high in a poor conductor. So it takes a relatively higher voltage to push electrons along in a bad conductor...if indeed they can be pushed at all. Some materials are so bad at conducting it's almost impossible to move those electrons along.
What else can I help you with?
Is electricity a form of heat?
technically no, electricity is a form of heat though
Is graphite a high resistance or low resistance of electricity?
Graphite is low resistance of electricity...
How can electricity turned into heat?
Electricity can be turned into heat through resistance heating. This occurs when an electric current passes through a material with resistance, such as a heating element or coil. The resistance in the material causes the electric energy to be converted into heat energy, which warms up the material and its surroundings.
Why does electricity follow the path of least resisitance?
Electricity follows the path of least resistance because resistance causes a loss of energy in the form of heat. This means that the path with lower resistance results in less energy loss and more efficient transmission of electricity.
Is a short wire better at conducting electricity?
In general, shorter wires are better at conducting electricity because they have less resistance compared to longer wires. Resistance in wires causes energy loss in the form of heat. So shorter wires are more efficient at conducting electricity.
What causes electric wires to warm up?
Electric wires warm up due to the resistance they encounter when electricity flows through them. This resistance causes some of the electrical energy to be converted into heat, resulting in the wires becoming warm.
What is relationship between resistance and heat as electricity flows through a wire?
As electricity flows through a wire, resistance causes some of the electrical energy to be converted into heat. The heat produced is proportional to the amount of current flowing through the wire and the resistance of the wire. Higher resistance in the wire will result in more heat being generated.
What happens in a current when the resistance goes up?
It causes the electricity flow faster,which in term increases the electrical flow.CommentChanging a circuit's resistance doesn't cause 'electricity' to flow faster -or slower, come to that! First of all, 'electricity' isn't a quantity, so it cannot be measured, and it doesn't flow! If, by 'electricity', you mean 'current', well that isn't made to 'flow faster' either.If the supply voltage is constant, then increasing a circuit's resistance causes the magnitude of current to fall. This has nothing to do with its 'speed'!
Why does the filament become hot?
The filament becomes hot when electricity passes through it, due to resistance in the wire. This resistance causes the filament to heat up and emit light in an incandescent bulb.
When can electricity be transformed into heat energy?
Electricity turns into heat when it passes through a resistance. The amount of wasted power can be calculated as I2R. Whenever electricity is used by some machine, most of it will eventually turn into heat, too.
When you jump your car it want start cable get hot?
Electricity passes through the cable. As it passes through the cable, the electricity will encounter resistance. This is what causes an electrical cable to heat up.
Why does a light switch get hot when turned on?
A light switch can get hot when turned on because of the flow of electricity through the switch. This flow of electricity causes resistance in the switch, which generates heat as a byproduct.
