What would decrease the resistance of a metal wire?

To reduce resistance increase its cross section, make it shorter and reduce its temperature or change to a material that has a lower resistivity if you can.

How can resistance be reduced in wires?

Of course there exist many different ways to reduce the resistance, such as using a thicker wire (increase the cross section area), lowering the temperature, or even changing the material.

What does the resistance of a metal wire depend on?

With the increase in temperature of conductor, both the random motion of electrons and the amplitude of vibration of fixed positive ions increase. As a result, the number of collisions increases. Hence, the resistance of a conductor increases with the increase in its temperature.

What affects the 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. See resistivity. The resistance of a conductor, or circuit element, generally increases with increasing temperature.

What causes resistance in a metal?

As electrons move through a metal conductor, some collide with atoms, other electrons or impurities. Heating the metal conductor causes atoms to vibrate more, which in turn makes it more difficult for the electrons to flow, increasing resistance.

How does the resistance of a wire depends on its temperature explain with reason?

With the increase in the temperature of a conductor, both the random motion of electrons and the amplitude of vibration of fixed positive ions increase. As a result, the number of collisions increases. Hence, the resistance of a conductor increases with the increase in its temperature.

What causes low resistance in a circuit?

All conductors give off some degree of heat, so overheating is an issue often associated with resistance. The lower the resistance, the higher the current flow. Possible causes: insulators damaged by moisture or overheating.

Why the resistance of the wire increased if the wire gets hotter?

The hotter wire has a larger resistance because of increased vibration of the atomic lattice. When a material gets hotter the atoms in the lattice vibrate more. This makes it difficult for the electrons to move without interaction with an atom and increases resistance.