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As the resistance of a material decreases does the efficiency of power transmission increase If so is it linear relationship and what about superconductors?
Yes, the efficiency increases. Yes, it is linear. Power lost in a current-carrying conductor is: P = I^2 * R So, if you halve the resistance, you halve the power loss. Note though that the current (I) term is squared. So if you can decrease the current by increasing the transmission voltage, the increase in efficiency is not linear, but exponential! Halve the current (and double the voltage to get the same power), and you reduce losses by four times! This is why utilities use such high voltages for transmission. Superconductors are no different, you are still talking about a reduction in resistance, superconductors just achieve a much lower resistance than a standard conductor. The question is whether the cost of superconductors and their cooling systems (currently very high) outweigh the modest gain in transmission efficiency.
What else can I help you with?
What are most modern high temperature superconductors made of?
Resistance decreases with the decrease of temperature. Superconductors are made by lowering the temperature.
Which element has the property of zero resistance?
The element that has the property of zero resistance is superconductors. Superconductors are materials that can conduct electricity without any resistance when they are cooled to very low temperatures.
What is super conducters?
Most conductors have resistance, which causes two problems: you lose energy in the conductor, so you need more electricity than you would with no resistance in the line, and you gain heat. Superconductivity is a property of some conductors where there is no resistance. Because superconductivity requires extremely low temperatures to work, only in places where you cannot have any losses at all--like cyclotrons--do you use superconductors.
Is graphite is a superconductor?
No, graphite is not a superconductor because it does not exhibit zero electrical resistance and expel magnetic fields, which are defining characteristics of superconductors. Graphite is a good conductor of electricity but it does not display superconducting properties.
What do you mean by base-spreading resistance?
Base-spreading resistance refers to the resistance that exists in a bipolar transistor due to the spreading of the base current into the collector region. This resistance can limit the transistor's high-frequency performance and impact its overall efficiency. Reducing base-spreading resistance is important for improving the speed and performance of a transistor.
What are the uses of a superconductor?
Superconductors are used in a variety of applications including MRI machines, particle accelerators, and power transmission lines where they can carry electrical currents with zero resistance, leading to increased efficiency and reduced energy losses. They are also used in magnetic levitation (maglev) trains for efficient transportation.
What is conductors insulators superconductors and semiconductors rank in order of least resistance to most resistance?
Superconductors have no resistance. Conductors have low resistance, semiconductors have intermediate resistance, and insulators have high resistance.
Which has the lowest resistance semiconductors superconductors insulator conductor?
Superconductors have the lowest resistance of all materials, with resistance dropping to zero when they are cooled below a certain critical temperature. Conductors have lower resistance than semiconductors and insulators, which have significantly higher resistance and do not conduct electricity as effectively.
What do you call materials with the resistance of ohms?
superconductors
What materials don't have any resistance?
superconductors
Why need conductor resistance?
They don't. Look into superconductors.
What are most modern high temperature superconductors made of?
Resistance decreases with the decrease of temperature. Superconductors are made by lowering the temperature.
What do you call materials with a resistance of 0 W?
superconductors
What do some electrical conductors become when cooled to near absolute zero?
Some electrical conductors become superconductors when cooled to near absolute zero. This means they can conduct electricity with zero resistance, allowing for efficient electrical transmission and various technological applications.
How are superconductors different from conductors?
In superconductors, no electricity is wasted because there is no resistance to the flow of electrons. In conductors any electricity not used, is wasted.
What shows how conductors insulators superconductors and semiconductors rank in order of least resistance to most resistance?
Superconductors have no resistance, making them the best conductors. Semiconductors have moderate resistance. Conductors have low resistance, making them better conductors than insulators, which have high resistance, making them the poorest conductors.
What do you call materials with a resistance of 0 omega?
Materials with a resistance of 0 ohms are called superconductors. Superconductors exhibit zero electrical resistance when cooled below a critical temperature, allowing them to conduct electricity with no loss of energy.
