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What are the main causes of high resistance in the earth-continuity conductors?
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Do conductors have high or low current?
Low resistance. Think of Ohm's law. Voltage drop is directly proportional to resistance. The higher the resistance, the higher the voltage drop, and the less voltage that is available for the load. Think of conductor resistance as a resistance in series with the load. Also, higher conductor resistance means more power lost, going to heating the conductors. The "line loss" formula is P=I2R. The greater the resistance, the greater the electrical power being converted into thermal power heating the conductors.
What are the names for high voltage power cables?
Electrical conductors
What is excessive electrical resistance?
High resistance means insulation
What is the difference between on and off state resistance?
On Circuit Resistance = Close to the total load Resistance. Off Circuit Resistance = Near Infinitive High Resistance.
Is high electrical resistance good or bad?
electrical resistance is when something resists the electrical current .. eg rubber hope it helped
Good conductors have a high resistance or low?
Good conductors have low resistance
Which has a higher resistance insulators or conductors?
No, the resistance of an insulator is very high.
Why do spark plug wires have resistance?
All wires have a resistance, as does everything else in the universe. Conductors like metal and carbon generally have low resistances where as non conductors have a very high resistance. Think of it like friction, but electric.
Does abrasion affect hardness?
No. Steel and mercury are both good conductors (low resistance). Diamond and rubber are both insulators (high resistance).
Do conductors have high or low current?
Low resistance. Think of Ohm's law. Voltage drop is directly proportional to resistance. The higher the resistance, the higher the voltage drop, and the less voltage that is available for the load. Think of conductor resistance as a resistance in series with the load. Also, higher conductor resistance means more power lost, going to heating the conductors. The "line loss" formula is P=I2R. The greater the resistance, the greater the electrical power being converted into thermal power heating the conductors.
HOw does electricity get transported and why does it need to be at a high voltage?
The primary reason that power is transmitted at high voltages is to increase efficiency. ... The higher the voltage, the lower the current. The lower the current, the lower the resistance losses in the conductors. And when resistance losses are low, energy losses are low also.
What are conductors and insulators of electricity?
Conductors are materials that pass electrical current easily, that is, with low resistance. Insulators are materials that do not pass electrical current easily, that is, they have high resistance. Conductors are ordinarily metals, and insulators are ordinarily nonmetals. Some examples of conductors are: Silver, Copper, Carbon, and Aluminum. Some examples of insulators are Glass, Nylon, and Wood (as well as Air and Vacuum). Conductivity is a function of the mobility of Electrons in the materials in question. Conductors have high mobility and conductors have low mobility. Semiconductors are materials that have some properties of both conductors and insulators. Germanium and Silicon are well known semiconductors. Superconductors are materials that pass electrical current with zero resistance. All known superconductors perform this function only at very low temperatures, far below those encountered in Earth environments (i.e. from around 77 degrees above absolute zero down, or, in other words, below about -320 degrees F).
What are some non metal conductors?
Graphite, carbon, and some supercooled polymers are non-metallic conductors. In most cases, non-metallic conductors display a much higher resistance making them not very useful in either high voltage or high current (amperage) applications. They may however find a very good use in other applications where a constant resistance is desired but not available from "normal" conductors. Such as heat (see thermodynamics) where copper gains much resistance as heat rises, then it melts and fails. If you need a conductor in a very high temperature environment this is where it would be most beneficial. Other applications may include radio transmission antennas (not receiving antennas, as these are not bound to a SWR limit). I would also recommend a Google search and a look into wikipedia.
List of good and bad conductor of electricity?
Good conductors conduct electrical current very easily because of their free electrons. Some common good conductors are copper, aluminum, gold, and silver.Bad conductors (or insulators) oppose electrical current and make poor conductors. Some common insulators or bad conductors are glass, air, plastic, rubber, and wood.Conductors have a very low resistance to electrical current while insulators or bad conductors have a very high resistance to electrical current.
What is more important insulators or conductors?
Conductors and Insulators. In a conductor, electric current can flow freely, in an insulator it cannot. Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.
Are high density materials good electric conductors?
They are good electrical conductors.
Does silver have a high or low resistance?
Silver is the best natural conductor. It has the lowest resistance of any known natural material. Your conductors - low resistance materials Silver, Copper, Gold, Aluminum, Tungsten, Brass, Iron, Platinum... Gold is sometimes favored in circuits as silver and copper both oxides.
