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What Name the metals which offers higher resistance to the passage of electricity then copper?
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Why does the nichrome wire get heated first than copper wire?
Because Copper is an excellent conductor of electricity it would take too much copper wire to make an element having sufficient resistance to fit into the small space provided in any normally-sized electric heater. For that reason heating elements must be made from metals which have a much higher electrical resistance than Copper. Special alloys of metals such as Iron, Cobalt, Nickel, Zinc and Manganese have been invented for this purpose.
Why does tungsten heat up and copper doesn't?
It has a higher resistance to the flow of electricity. Pushing a current through it will create heat. Tungsten is only about 3 times the resistance of copper per same cross sectional area and length. Copper will heat up as well given enough current. If you think about a 60 Watt incandescant bulb operating at 120 VAC it draws 1/2 an amp and the metal filament must be 240 ohms in resistance. If you examine the filament you'll see it is a coil of wire so that the required length can fit into smaller space. If the filament were made of copper you would need 3 times the length of wire to get the same resistance.
What are the advantages of using copper compared to aluminium for transmission lines?
Copper is a better conductor than aluminum. Two wires with the same cross-sectional area, or any two constructs with the same physical shape and size, one fabricated from aluminum and the other from copper, the one made of aluminum always has higher ohmic resistance.
Does copper have a higher resistance to electron flow than aluminum?
Tungsten has high resistance, here is an example, in incandescent light bulb,there is a filament made up of tungsten (metal),when we turn on the switch the electricity flows through the filament making it heat up, NOW what heats up the filament is TUNGSTEN's resistance, HOW AND WHY: 1)Tungten has a high resistance, which mean that more electrons accumulate, as more electrons accumulate it heats up the filament due to resistance, it's just like : when you are cold you rub your hand together to make them warm there is a force called friction that heats up your hands due to the contant rubbing, same is here, when electrons accumulate, they become more resistant, i.e unable to move quickly, so when they can't move easily they began interacting and producing heat, the tungsten metal that is known to have high resistance helps it heat up and light up up as well, if tungsten was not resistant it would melt up at high temperature.
Why copper electrode does not melt while steel melts in spot welding?
Copper has a higher melting point than steel, so it does not melt during spot welding. Additionally, copper has higher thermal conductivity, which allows it to distribute heat more efficiently and prevent it from concentrating in one spot. This combination of a higher melting point and better heat dissipation makes copper electrodes suitable for spot welding applications.
Name a metal which offers higher resistance to the passage of electricity than copper?
It appears that Plutonium has the lowest conductivity (highest resistance) of all the metals, at 106 /Ohm*cm. This information comes from the link below.
Does aluminum have lower resistance than copper?
No, aluminum has a higher resistance than copper.
From copper and manganin which has higher resistance?
The question is actually wrong, they can both have the same resistance if configured differently, the real question should be which has a higher resistivity which is the electrical resistance found in a standard amount of each material. In this case Manganin has a higher resistivity than copper.
Why does electricity take the shortest path?
because resistance is proportional to the wire's length's . electricity moves from a higher potential to a lower one. Potential = current intensity x resistance, thus potential increases when resistance does. eventually electricity will not choose the longer path because it has a higher potential.
Do insulators have lower resistance than conductors?
On the contrary, insulators have higher resistance than conductors. Resistance refers to resisting a flow of electricity, making it more difficult for electricity to flow. Conductors conduct electricity, they make it easy for electricity to flow. Insulators prevent the flow of electricity.
What happens to copper when it is heated?
When copper is heated it oxidizes. The additional oxygen molecules it takes on when oxidizes leads it to have a higher mass.
Why does more current flow through the bulb when the reed switch was replaced with copper wire?
Copper wire has apparently lower resistance than the reed switch. The lower electric resistance, the higher electric current.
Why does the nichrome wire get heated first than copper wire?
Because Copper is an excellent conductor of electricity it would take too much copper wire to make an element having sufficient resistance to fit into the small space provided in any normally-sized electric heater. For that reason heating elements must be made from metals which have a much higher electrical resistance than Copper. Special alloys of metals such as Iron, Cobalt, Nickel, Zinc and Manganese have been invented for this purpose.
Why does tungsten heat up and copper doesn't?
It has a higher resistance to the flow of electricity. Pushing a current through it will create heat. Tungsten is only about 3 times the resistance of copper per same cross sectional area and length. Copper will heat up as well given enough current. If you think about a 60 Watt incandescant bulb operating at 120 VAC it draws 1/2 an amp and the metal filament must be 240 ohms in resistance. If you examine the filament you'll see it is a coil of wire so that the required length can fit into smaller space. If the filament were made of copper you would need 3 times the length of wire to get the same resistance.
What value of electricity would kill you?
.10 amp could be fatel, the higher the ampage the more likely. Ampage is determined by the voltage and the resistance. ampage= voltage/ resistance
What are the advantages of using copper compared to aluminium for transmission lines?
Copper is a better conductor than aluminum. Two wires with the same cross-sectional area, or any two constructs with the same physical shape and size, one fabricated from aluminum and the other from copper, the one made of aluminum always has higher ohmic resistance.
Is it possible to pass electricity in a controlled manner from a heavily (static)charged body?
I assume you want to discharge them slowly. You can connect it to other (uncharged) bodies using a connection that has a fairly high resistance. The higher the resistance, the slower the electricity will discharge.
