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The resistance to water flow in a rough or partially clogged pipe is like a conductor having?
Wiki User
∙ 13y ago
high conductivity
Wiki User
∙ 13y ago
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Is A superconductor is A conductor having zero resistance?
Yes, a superconductor has zero resistance.
Why heater coil glow but supply wire not glow?
Heater coil is made of alloys such as meganin wire ,and is having high melting point .Alloys have high resistance due to which most of electrical energy is converted into heat energy.According to joules law of heating heat produced in a conductor is directly propotional to square of current and is directly proptional to resistance of conductor and time for which current flows.Heater wire does not glow because of having less resistance
What type of resistance - high or low - do conductors and insulators have?
A component of a given size that offers low resistance is called a good conductor.A conductor having some appreciable resistance is called a resistor.A component of identical size that offers a higherresistance is called a poor conductor.An insulator of the same size offers even higherresistance.
What is the difference between insulators and conductors?
Conductor- Low resistance to the flow of electricity, heat or other form of energyInsulator- High resistance to the flow of electricity, heat or other form of energy
Why do car designers like to reduce air resistance on cars?
They do it because it makes the car faster and more fuel efficient as it is not having as much resistance pushing against it.
Is A superconductor is A conductor having zero resistance?
Yes, a superconductor has zero resistance.
Why heater coil glow but supply wire not glow?
Heater coil is made of alloys such as meganin wire ,and is having high melting point .Alloys have high resistance due to which most of electrical energy is converted into heat energy.According to joules law of heating heat produced in a conductor is directly propotional to square of current and is directly proptional to resistance of conductor and time for which current flows.Heater wire does not glow because of having less resistance
What is a conductor electricity?
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.
Do The resistance of a material generally increases as its temperature increases?
The answer to this depends on the material from which the resistance is made. For most materials resistance increases with increasing temperature. This is referred to as having a "positive temperature coefficient". Some materials have a negative temperature coefficient; these do have uses in electronics.
What type of resistance - high or low - do conductors and insulators have?
A component of a given size that offers low resistance is called a good conductor.A conductor having some appreciable resistance is called a resistor.A component of identical size that offers a higherresistance is called a poor conductor.An insulator of the same size offers even higherresistance.
What is the definition of electrical resistance?
Resistance is the opposition to electric current, expressed in ohms.Resistance is directly-proportional to the resistivity of the conducting material and its length, and inversely-proportional to its cross-sectional area.Alternating current tends to flow towards the surface of a conductor due to the 'skin effect', thus reducing the effective cross-sectional area of a conductor. Therefore, resistance to a.c. is somewhat higher, at normal supply frequencies, than to d.c., and significantly higher at very high frequencies.
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 the resistance of a conductor compare to that of an insulator?
The resistance of a sample of a conducting substance is less than theresistance of a physically identical sample of an insulating substance.AnswerTo give you some idea of the difference between the resistance of insulators and conductors, a sample of mica (an insulator), just 25-mm long, has the same resistance as a copper conductor, having the same cross-sectional area, but measuring a staggering 14 290 000 000 000 000 000 kilometres long! To put this in perspective, the average distance from the Earth to the Sun is a mere 150 000 000 kilometres!
How does the resistance of a conductor compare to that of a insulator?
The resistance of a sample of a conducting substance is less than theresistance of a physically identical sample of an insulating substance.AnswerTo give you some idea of the difference between the resistance of insulators and conductors, a sample of mica (an insulator), just 25-mm long, has the same resistance as a copper conductor, having the same cross-sectional area, but measuring a staggering 14 290 000 000 000 000 000 kilometres long! To put this in perspective, the average distance from the Earth to the Sun is a mere 150 000 000 kilometres!
How do you know an electrical circuit has a short in it?
A short circuit is determined by a low resistance between two conductors or between a conductor and the ground. <<>> The circuit's over current protection usually trips resulting in the circuit having no power.
What would happen if you had a clogged arterie in your head?
that's called having a stroke
What is shunted?
A conductor having low resistance in parallel with another device to divert a fraction of the current. It is sometimes called a Resistor. The causative diversion of venous blood into oxygenated arterial blood and thus mixing is also a shunt. "shunting"
