Table of Contents
- 1 How does bending of wire decreases the resistance of electric wire?
- 2 What affects the electrical resistance of a wire?
- 3 Does bending a wire increases its resistance?
- 4 What four physical factors affect the resistance of a wire?
- 5 When straight wire of resistance R is bend in its resistance?
- 6 What is the effect of bending a wire on electrical resistance?
- 7 How does bending change the path of electrons in a circuit?
How does bending of wire decreases the resistance of electric wire?
Bending of wire is known as hardening due to which the crystal structure of wire changes. Hence, resistance of wire decreases as it depends on the length of wire, thickness ,nature of material and temperature of conductor.
What affects the electrical resistance of a wire?
The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor. The resistance of a conductor, or circuit element, generally increases with increasing temperature.
Which does not affect the resistance of a wire?
Mass does not affect resistance.
What does not change the resistance of a wire?
Answer on Question #45708, Physics, Electromagnetism The only item not listed here is voltage. Voltage value is not affect resistance (if we will not take into account any temperature changes).
Does bending a wire increases its resistance?
Yes, bend in wire affects its resistance. If a wire is bent its length decreases and its area increases. Therefore resistance of wire decreases as length decreases and area increases.
What four physical factors affect the resistance of a wire?
There are four factors affecting resistance which are Temperature, Length of wire, Area of the cross-section of the wire, and nature of the material. When there is current in a conductive material, the free electrons move through the material and occasionally collide with atoms.
What factors do not affect resistance?
The resistance of a conductor does not depend on Pressure. So it depends on the material. It is inversely proportional to the cross-sectional area of the wire. The r esistance is directly proportional to the length of the wire and resistivity of the material used in making the wire.
What decreases the resistance of a wire?
Changing the material, increasing the cross section area, lowering the temperature, and using a thicker wire are some of the ways to reduce resistance.
When straight wire of resistance R is bend in its resistance?
No, the resistance remains same, because length and cross-sectional area of the wire remain unchanged.
What is the effect of bending a wire on electrical resistance?
Flow of electrons is not affected by bending a wire, hence there is no effect on electrical resistance. •Resistance is defined as the obstruction to the flow of current.
What are the factors that affect the are of a conductor?
There are 4 factors that can affect R: 1. Length of the conductor 2. Area of cross section of the conductor 3. Electrical Resistivity of Substances 4. Effect of Temperature But if any bend produces stress in the wire (compression on the inside, tension on the outside) and this stress affects resistivity and hence resistance.
How does kinked wire affect resistivity?
But if any bend produces stress in the wire (compression on the inside, tension on the outside) and this stress affects resistivity and hence resistance. and if its kinked the effect will be even greater.
How does bending change the path of electrons in a circuit?
Here is simple explanation: bending change the area at the bend location, which is directly related to resistance. bending will also change the path of electrons (like say cars going on a highway, cars will slow down at bends.