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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.
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What are the advantages of using copper compared to aluminium for transmission lines?
Copper has lower electrical resistance than aluminum, allowing for less power loss during transmission. Copper also has better thermal conductivity and is more durable than aluminum, leading to a longer lifespan for transmission lines. However, aluminum is lighter and more cost-effective than copper, making it a popular choice for long-distance transmission lines.
Can you use an aluminium wire instead of copper for a simple electrical circuit?
Yes, you can use an aluminum wire. Aluminum does conduct electricity. However, there is a well-known problem with aluminum wire. When exposed to air, the outer layer of aluminum forms a non-conductive oxide. There is resistance to the flow of electricity as it attempts to get through the aluminum oxide coating to the conductive aluminum below. When aluminum wire is used to reduce weight, it is usually welded to another metal that makes a better contact, such as copper. The contact metal is then what is connected.
Does aluminum heats up faster than copper?
No, copper heats up faster than aluminum because copper has higher thermal conductivity. This means it can transfer heat more efficiently leading to faster heating.
What conducts heat best wood copper or aluminum?
either copper or aluminum, but definitely not wood. copper is the best conductor of heat, aluminum comes second. Wood is the worst conductor as it doesn't contain free electrons that move around and transfer heat energy. Hope it helps!
Is aluminum more conductive than copper?
Copper. Alloys of copper are used in most of the electrical wiring indoors and/or outdoors.However, aluminum is used in long-distance high-tension electrical lines because by weight it's a better conductor than copper is (and because it's less expensive and stronger). An aluminum wire needs to be thicker than a copper wire in order to have the same current-carrying capacity. However, even though it's thicker, it weighs less, which means the relatively expensive transmission towers can be spaced further apart without the wire sagging too much.
Does aluminum have lower resistance than copper?
No, aluminum has a higher resistance than copper.
What type of wire material should be used for a 100 amp service, aluminum or copper?
Copper wire is recommended for a 100 amp service due to its higher conductivity and lower resistance compared to aluminum wire.
What type of wire material should be used for a 200 amp service, aluminum or copper?
Copper wire is recommended for a 200 amp service due to its higher conductivity and lower resistance compared to aluminum wire.
Does a copper heat sink or an aluminum one with a base made of copper work any better than a pure aluminum one?
The thermal conductivity of copper is higher than that of aluminum, and silver is better than either copper or aluminum.
Why do conductors have high resistance?
Conductors have high resistance due to their material properties. Materials with high resistivity like copper or aluminum impede the flow of electrons, causing resistance. Additionally, impurities and defects in the conductor's structure can also contribute to higher resistance.
What copper wire would have the highest resistance?
A thicker copper wire will have higher resistance as it will offer more opposition to the flow of electrons compared to a thinner wire. Additionally, a longer copper wire will have higher resistance compared to a shorter wire due to increased distance for the electrons to travel. Finally, a copper wire with impurities or defects will have higher resistance than a pure copper wire.
Does aluminum or copper produce more electricity?
Copper produces more electricity than aluminum due to its higher electrical conductivity. This means that copper allows for better flow of electrical current, resulting in higher electrical output compared to aluminum for the same conditions.
What are factors that affect resistance of electricity?
Factors that affect resistance of electricity include the type of material the wire is made of (e.g. copper vs. aluminum), the length of the wire (longer wires have higher resistance), and the cross-sectional area of the wire (thicker wires have lower resistance). Temperature also affects resistance, with higher temperatures typically leading to higher resistance.
What affects the resistance of a conductor?
The length and the material that the conductor is made from. Different wire sizes have different ohm/foot. The longer the length of the conductor the higher the ohms/foot. Temperature also affects the resistance. Silver has the least resistance, followed by Copper, then Gold, then Aluminum. Here are some published resistances in micro ohm-cm: Silver - 1.6 Copper - 1.7 Gold - 2.2 Aluminum - 2.7
What are the advantages of using copper compared to aluminium for transmission lines?
Copper has lower electrical resistance than aluminum, allowing for less power loss during transmission. Copper also has better thermal conductivity and is more durable than aluminum, leading to a longer lifespan for transmission lines. However, aluminum is lighter and more cost-effective than copper, making it a popular choice for long-distance transmission lines.
When combining Aluminum and Copper Chloride what material is formed?
Two materials are formed: metallic copper and aluminum chloride. This is an example of displacement of a less active metal from its compounds by a more active metal in the electromotive series.
Can you use an aluminium wire instead of copper for a simple electrical circuit?
Yes, you can use an aluminum wire. Aluminum does conduct electricity. However, there is a well-known problem with aluminum wire. When exposed to air, the outer layer of aluminum forms a non-conductive oxide. There is resistance to the flow of electricity as it attempts to get through the aluminum oxide coating to the conductive aluminum below. When aluminum wire is used to reduce weight, it is usually welded to another metal that makes a better contact, such as copper. The contact metal is then what is connected.
