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What has a lower resistance a long thin iron wire at high temp or a short thick copper wire at low temp?
A short thick copper wire at low temperature would have lower resistance compared to a long thin iron wire at high temperature. This is because resistance is inversely proportional to cross-sectional area and directly proportional to temperature and length of the wire. The short thick copper wire has a larger cross-sectional area, which results in lower resistance.
Does a high temperature wire have more resistance?
Ideally, an electrical fuse should not have a high resistance. It will generally have some, because the way most cartridge fuses work is by heating a thin filament to the melting point when a certain current flows through it. The heating is resistive heating, which is given by the equation P = I2R, or power = the square of the current times resistance. <> The above is 100% correct, I just want to add: A fuse does not reduce the power in any way, It simply does not allow too much power to be taken. Example: You can use A 100amp fuse on A 10amp motor, The power supply will be 10amps because that's all the motor requires, but if there is a short or the motor is over worked the fuse will allow more chance of damage because its way too big for the job. Another: If A 10amp fuse is used to protect A 100amp motor the motor will blow the fuse everytime its terned on, because the fuse will not allow the motor the necessary power to opperate.
A wire that is what would have the greatest electrical resistance?
A long and thin wire made of a material with high resistivity and low conductivity would have the greatest electrical resistance. The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area, so a long, thin wire will have a greater resistance compared to a shorter, thicker wire.
What means how high or low a sound is?
The pitch of a sound refers to how high or low it is. It is determined by the frequency of the sound waves, with high frequencies corresponding to high pitches and low frequencies to low pitches.
Does thin wires have high or low resistance?
Thin wires have high resistance because they offer more obstruction to the flow of electrical current compared to thicker wires. This increased obstruction results in higher resistance, as described by Ohm's law.
Is fuse wire characterized by high resistance and high melting point?
No, fuse wire is characterized by low resistance and a low melting point. This allows the fuse wire to melt quickly and break the circuit when there is an overload of current, thereby protecting the circuit from damage.
Does the material used for a fuse wire need to have a low or a high melting point - a low or high ductility - a low or high resistivity?
The material for the fuse wire should have low resistance and a low melting point. Ductility is a incidental factor. As the current flow nears the fuse rating, the high current flow causes the wire to heat up quickly. It then melts, opening (breaking) the circuit. This is how the fuse limits the amount of current that can flow through a circuit.
What are the properties of a fuse wire?
It has high specific resistance and low melting point.........
What material is used to make a fuse wire?
The material suitable for making a fuse wire should have a low melting pt. so that it can easily melt and cut off the flow of current and save the electrical appliance...
Why do you have high beams and no low beam?
Burned out bulbs, blown fuse, failed switch, broken wire, etc.
What is inside a fuse?
There's a thin metal wire with a low melting point inside a fuse.It may be a nichrome wire.However copper wire is not suitable to be the thin wire inside a fuse cause it has a very high melting point.
What are the wiper motor wire colors for an S10?
The wire color for a windshield wiper motor in an S10 pickup that connects to the fuse is white. The high speed wire is purple, the low speed wire is gray.
What is a fuse wire characterized by?
Low resistance and low melting point by "justquikr.com"
Why can not copper wire be used as a fuse wire?
The fuse needs a low melting point and reletivelyhigh resistance so that it melts at the proper current
What type of wire is used in fuse and why?
Fuse wire is usually made with metal that has a low melting point, e.g. tin, to lessen the risk of fire.
What happens if a large current is forced through a high resistance wire?
A large amount of energy, calculated as the voltage difference across the wire, will be expended in that section of wire. This would most likely cause it to glow and/or create a lot of heat, which could possibly melt the wire and break the circuit (this is the principle any fuse is based on - a fuse is a low resistance wire that has a low melting temperature, so a "large" current will cause the fuse to heat excessively, melting the conductor). A light bulb is exactly this - a "high resistance" wire (or filament), where relatively large current is pushed through a very small cross section of wire, causing it to glow.
Why does your 2001 stratus keep blowing a 20 amp starter fuse?
faulty wiring or too low of a fuse, shorting out because the wire is touching metal or another wire
