Does resistance of a wire depend on temperature?

Since the resistance of some conductor, such as a piece of wire, depends on collisions within the wire itself, the resistance depends on temperature. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and “slow” the flow of current.

What does resistance of a wire depend on?

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.

Which of the following factors that resistance of wire depends?

The resistance of the conductor depends on the following factors:

• The temperature of the conductor.
• The cross-sectional area of the conductor.
• Length of the conductor.
• Nature of the material of the conductor.

On which of the following does resistance of a wire does not depend?

It depends only on the material of the conductor. It does not depend on the shape and size of the conductor. Whereas the resistance does depend on the shape and size of the conductor.

Why does resistance increase with temperature?

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

What is effect of temperature on resistance?

The effect of temperature on the resistance of the conductor is directly proportional to each other. The increase in temperature of the conductor increases its resistance and makes it difficult to flow current through it. As discussed above, the movement of free electrons creates the flow of current in the conductor.

Does resistance depend on density?

No, resistance does not depend on the density of the material. However, it depends inversely on the density of free electrons in the material.

Which of the following resistance does not depend on length of conductor area of cross section temperature density?

Correct answer is option ‘D’.

How is resistance of a metal dependent on temperature?

Electrons flowing through a conductor are impeded by atoms and molecules. The more these atoms and molecules bounce around, the harder it is for the electrons to get by. Thus, resistance generally increases with temperature.

How does temperature affect the resistance of a metallic conductor?

When the temperature of metallic conductor increases, the velocity of free electrons increases but it also cause increase in amplitude of vibration of metallic atoms which cause some extra resistance in the path of free electron. Hence resistance increases with increase in the temperature.

What does the resistance of a wire depend on?

Reason (R) :Resistance of a wire depends on resistivity of that material. The Fish Tale Across the Wall Tenths and HundredthsParts and Whole Can you see the Pattern?

What happens to the resistance of an insulator at high temperatures?

Therefore at high temperatures the resistance of an insulator can fall, and in some insulating materials, quite dramatically. In a material where the resistance INCREASES with an increase in temperature, the material is said to have a POSITIVE TEMPERATURE COEFFICIENT.

What is the effect of temperature on the resistance of a resistor?

In use, resistors made from such materials will have only very slight increases in resistivity, and therefore their resistance. Using such materials for the manufacture of resistors creates components whose value changes only slightly over a given range of temperature.