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What else can I help you with?
Does heating a metal wire increase or decrease its electrical resistance?
it so increases it
The magnitude of the resistance of a wire depends on?
Temperature, Length of wire, Area of the cross-section of wire and nature of the material.
What are the car stereo wiring colour codes for a 1993 Renault clio?
The red wire is the positive wire. The black wire is the ground wire. The green and yellow wires are the speaker wires. The white wire is the auxiliary wire.
Two ways resistance of a wire can be increased?
The resistance of a wire is determined by the following formula. R = (rho)L/A, where the greek letter rho (it looks like a p) is a value assigned to a material based on how resistive it is by nature, L is the length of the wire, and A is the cross-sectional area (AKA how thick the wire is). Increase the length, or change the material to something with higher restistivity. Hope this helps!
Can copper wire be used for thermocouple extention?
No. A thermocouple is made from two dissimilar wires. At the junction of these two wires, an electrical signal is generated that is measured in millivolts. If you insert another type of wire, such as copper, then you have introduced another electrical junction. Your signal will be (millivolt from junction 1 + millivolt from junction 2). <><><> Maybe. A thermocouple measures the temperature difference between the sensing junction (where the two different metal wires meet) and the other end of the wire, the reference junction. If you extend a thermocouple with copper wire, you will measure the temperature difference between the junction and the location where the copper extension is spliced on. If the copper splice is the same temperature as the reference junction, or if you can measure the temperature at the splice, then it will be fine. In general, it is better to run the thermocouple wire to the reference junction.
What causes wires to get hot?
Wires get hot when electrical current flows through them, causing resistance in the wire. This resistance converts electrical energy into heat energy, making the wire hot.
Is fundamental property of wire that depends on a wire' that depends on a wires molecular structure and size?
Yes, a fundamental property of a wire that depends on its molecular structure and size is its electrical resistance. The arrangement and types of atoms in the wire's material influence how easily electrons can flow through it. Additionally, the wire's dimensions, such as length and cross-sectional area, also affect its resistance, as longer and thinner wires generally have higher resistance.
How does the size of the wire affect the electrical resistance?
The size of the wire directly affects the electrical resistance. Thicker wires have lower resistance compared to thinner wires, as there is more space for electrons to flow through, reducing the resistance. Conversely, thinner wires have higher resistance due to smaller pathways for electron movement.
What is the resistance of a connecting wire?
The resistance of a connecting wire can vary depending on its material, length, and thickness. In general, wires with a higher resistance will impede the flow of electrical current more than wires with lower resistance. It is important to consider the resistance of connecting wires in electrical circuits to ensure proper functionality.
What are three things resistance of a wire depends on?
The resistance of a wire depends on its length - longer wires have higher resistance. It also depends on the material of the wire - materials with higher resistivity have higher resistance. Lastly, the cross-sectional area of the wire affects resistance - larger cross-sectional areas have lower resistance.
Wires with high resistance change electrical energy into what?
Wires with high resistance change electrical energy into heat energy. This occurs due to the resistance in the wire hindering the flow of electrons, causing them to collide and generate heat.
What does the resistance of the wire depend on?
The resistance of a wire depends on three main factors: its length, its cross-sectional area, and the material it is made of. Generally, longer wires have higher resistance while thicker wires have lower resistance. The material's resistivity also plays a significant role in determining the wire's resistance.
Electric current flows in a wire which is opposed by what?
Electric current flowing in a wire is opposed by electrical resistance. This resistance is caused by factors such as the material of the wire, its length, and its cross-sectional area. It results in the conversion of electrical energy into heat.
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.
Why current carrying wires become hot?
Current carrying wires become hot due to resistance in the wire. As electric current flows through the wire, resistance causes some of the electrical energy to be converted into heat. This heat energy accumulates over time, causing the wire to become hot.
What form of energy causes the wires in a toaster to give off heat and light?
Electrical energy heats the wires in a toaster to the point where they emit heat and light due to resistance in the wire. This resistance converts the electrical energy into thermal energy, resulting in the wires heating up and glowing.
Does a longer wire equal resistance?
Wire is not equal to resistance. If you have two pieces of wire with the same thickness, composition, and temperature, the longer piece has higher electrical resistance.
