Table of Contents

- 1 What happens to the resistance of a conductor when the length is reduced to half?
- 2 What happened to the resultant of a conductor when the length of the conductor is reduced to half of its original length?
- 3 What happens if the current through a resistance is halved?
- 4 What will be effect on the resistivity of a conductor if the length of the conductor is made four times?
- 5 What happens to resistance of the conductor if length is doubled and area of cross-section halved?
- 6 What happens to the resistance and resistivity if the length of a given wire is increased to two times by stretching the wire?
- 7 What happens to the resistance when the length of a conductor?
- 8 How is the resistance of a wire affected when diameter is doubled?

## What happens to the resistance of a conductor when the length is reduced to half?

When length of conductor is halved, its resistance also gets halved.. Hope it helps Thanks…

**What happens to the resistance of a conductor if its length is increased?**

the resistance of a conductor is directly proportional to its length. so if length is increased then resistivity increases ande vice versa. so if length is doubled resistance will also get doubled i.e resistance is 4 times that of original resistance.

### What happened to the resultant of a conductor when the length of the conductor is reduced to half of its original length?

so if length get halfed then resistance will also get halved.

**What happens to the resistance of a conductor if the length of wire is increased three times keeping the radius same?**

The resistance of a wire is inversely proportional to its area and directly proportional to its length. When the length is tripled then resistance will also become three times.

#### What happens if the current through a resistance is halved?

Hence, the current will become double.

**How does the heat produced in an element change if half of it is removed from the circuit?**

Heat generated is I^2R, so, reducing I by half would reduce the heat by 4 times.

## What will be effect on the resistivity of a conductor if the length of the conductor is made four times?

Explanation: If length is 4 times then respectively Resistance will also increase by 4 times.

**What happens to the resistivity if resistance and length are constant and the cross sectional area is doubled?**

Correct answer: Since is doubled, and resistance and length are constant, resistivity will also be doubled.

### What happens to resistance of the conductor if length is doubled and area of cross-section halved?

Initial length of the conductor l1=l Final length of the conductor l2=2l Initial cross-sectional area A1=A Final cross-sectional area A2=2A The resistance of conductors given by R=ρ1A∝1A As both the length and area are doubled Hence, there will be no change in the resistance of the conductor and so it will remain …

**How will resistance of a conductor change if it is stretched so that its length is doubled?**

As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance.

#### What happens to the resistance and resistivity if the length of a given wire is increased to two times by stretching the wire?

(d) Resistivity of wire remains constant. As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance.

**How will the resistance and resistivity of a conductor change when its length is tripled by stretching it?**

Resistivity of a conductor such as wire will increase by nine times when it is stretched by three times. It is directly proportional to the length and inversely proportional to diameter. So the resistivity will also triple.

## What happens to the resistance when the length of a conductor?

Hence, if the length is doubled, then L will increase by a factor of 2, and if the diameter is doubled, then A will increase by a factor of 4 (this is because the area of a circle (and hence the If the conductor is the same, and thus has the same resistivity, and the conductor is cylindrical, then the resistance will halve.

**What is the resistance of a half-led wire?**

Resistance of wire depends upon resistivity, length and area of cross section,in simple words resistance is directly proportional to lenght and inversely proportional to cross sectional area. In this case since lenght is halfed and area is doubled resistance decreases by 4 times.

### How is the resistance of a wire affected when diameter is doubled?

Because when diameter will large then the area of cross section will large and electrons can move more freely hence the resistance wiil reduce. How is the resistance of wire affected if its length is doubled radius is doubled? When the radius of the wire is doubled it means the area of cross-section is increased by four times.

**What happens when you double the cross sectional area of a conductor?**

When you double the cross sectional area of a conductor, you can think of this as connecting a second conductor, identical to the first, in parallel with it. When you parallel two identical resistors, the combined resistance is halved. r = ϱ x L/A where ϱ is the resistivity of the material, L is the length and A is the cross sectional area.