What causes an increase in the resistance of a conductor?

Answer: The resistance of a conductor increases with an increase in temperature because the thermal velocity of the free electrons increases as the temperature increases. All of these oscillating ions collide with electrons, causing resistance to increase.

Which of the following increases resistance of a conductor?

Increasing the length of the wire will increase the resistance of the wire.

Why does resistance depend on length?

Resistance is directly proportional to the length of the conductor. So, as the length increases, the magnitude of resistance increases. Resistance is inversely proportional to the cross-sectional area of the conductor. Thus, the resistance of the conductor decreased with the decrease in cross-sectional area.

Why is length directly proportional to resistance?

As the length increases, the number of collisions by the moving free electrons with the fixed positive ions increases as more number of fixed positive ions are present in an increased length of the conductor. As a result, resistance increases.

How does resistance of conductor depends on length of conductor?

What is the relation between resistance and the length of conductor?

The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance. Also the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A.

How does the length of a conductor affect the resistance?

In this case as the conductor length increases by a factor x. The resistance will also increase by a factor x Keeping the Volume constant (i.e by stretching). Now due to stretching the length increases but area of cross section decreases. So to find numerically, we

What factor will increase resistance as the length increases?

Everybody knows Resistance increases as length increased. Here I like to answer by what factor resistance will increase as the length increases. There are two possible cases to increase the length of the conductor. Keeping the area of cross section constant.( i.e.) simply increasing the length of the conductor by increasing the volume.

How do you find the resistivity of a material by stretching?

Keeping th e Volume constan t (i.e by stretching). Now due to stretching the length increases but area of cross section decreases. So to find numerically, we need to multiply the numerator and denominator of the term ( [resistivity*length]/area ) by length so it becomes (resistivity*length^2)/Volume.

What is the temperature coefficient of a conductor?

When resistance FALLS with an increase in temperature, the material is said to have a NEGATIVE TEMPERATURE COEFFICIENT. In general, conductors have a POSITIVE temperature coefficient, whilst (at high temperatures) insulators have a NEGATIVE temperature coefficient. Different materials within either group have different temperature coefficients.