When a resistive wire is cut into two equal parts what would be the value of current across the wire?

When a resistive wire is cut into two equal parts what would be the value of current across the wire?

A wire of resistance r is cut into two equal parts, its resistance becomes r/2.

What will be the resistance if this wire is divided into two equal parts and these parts are joined in parallel?

If a wire a resistance R Cut into 2 pieces, then each piece resistance will be R/2. Now , these two pieces connected in parallel. Which means R/2 is in parallel with R/2. Hence the answer is R/4.

Do all wires have the same resistance?

All wires have same resistance and equivalent resistance between A and B is R0 . Now keys are closed, then the equivalent resistance will become.

Does wire size change resistance?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. More collisions mean more resistance. Second, the cross-sectional area of the wires will affect the amount of resistance.

What is the resistance of the two connected wires?

Since Resistance is directly proportional to length of wire, resistance of wire after being cut into two equal halves is R/2. Therefore the resistance of combination will be=((R/2)*(R/2))/((R/2)+(R/2))=R/4 ohms.

Does resistivity depend on length?

The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.

Are sister wire of resistivity P is cut into two equal pieces the new resistivity of one piece is?

Answer: So, when you cut a wire into two exactly equal halves, the resistance will also be down to half. Resistivity, on the other hand, is a property of a material, so unless you change the material of the wire, resistivity will remain same.

Which wire has more resistance thick or thin?

The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .

Does diameter affect resistance?

The greater the diameter of the cylinder, the more current it can carry (again similar to the flow of fluid through a pipe). In fact, R is inversely proportional to the cylinder’s cross-sectional area A. The larger its cross-sectional area A, the smaller its resistance.

Does bigger wire have less resistance?

The longer a wire is the more resistance it has due to the longer path the electrons have to flow along to get from one end to the other. The larger the cross sectional area, the lower the resistance since the electrons have a larger area to flow through. This will continue to apply no matter how thick the wire is.

Does a thicker wire have more resistance?

The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current.

What are the factors affecting resistance?

There are 4 different factors which affect resistance:

• The type of material of which the resistor is made.
• The length of the resistor.
• The thickness of the resistor.
• The temperature of the conductor.

  How is the resistance of a conductor related to its cross section?

  The resistance of a conductor is inversely proportional to the area of the cross section of a conductor. (c) Effect of material of a conductor. The resistance of a conductor also depends on the material of a conductor. E.g. The resistance of nichrome wire is 60 times more than that of copper wire as nichrome has high electrical resistance.

  Which is more resistance nichrome wire or copper wire?

  The resistance of nichrome wire is 60 times more than that of copper wire as nichrome has high electrical resistance. (d) Effect of temperature. The resistance of all pure metals increases on increasing the temperature and decreases on decreasing the temperature.

  Can a spark plug wire cause RFI interference?

  EMI from spark plug wires can cause erroneous signals to be sent to engine management systems and other on-board electronic devices used on both racing and production vehicles in the same manner as RFI (radio frequency interference) can cause unwanted signals to be heard on a radio receiver.

  What kind of wire is a RTD made out of?

  RTDs are typically constructed from a length of wire wrapped around a ceramic or glass core. RTDs may also be constructed from thick film resistors plated onto a substrate. The wire or resistance is typically platinum but may also be made from nickel or copper.

  What should the resistance of a two wire be?

  Typical lead resistances range from 10mΩ to 1Ω, so it’s very difficult to obtain accurate two-wire resistance measurements when the resistance under test is lower than 100Ω because the resistance of interest will be completely swamped by the lead resistance. In fact, lead resistance will be the dominant source of error.

  Which is the best wire with the least Reistance?

  A. Taylor Cable’s Thundervolt 50 and Thundervolt 8.2mm are the wires with the least amount of reistance (40 Ohms per foot) and will offer the best performance. Q. Which is best – more or less resistance? A. Many believe that a higher resistance (number of Ohms per foot) is better, but the opposite is true.

  Are there any low resistance ignition wire conductors?

  Some Japanese and European original equipment and replacement ignition wires do have spiral conductors that provide good suppression, and usually none of these wires are promoted as having low-resistance conductors.

  Which is better a higher resistance or lower resistance?

  A. Many believe that a higher resistance (number of Ohms per foot) is better, but the opposite is true. The lower the resistance of the wire, the less energy is lost from that resistance. Q. I see many wire sets to pick from for my vehicle.