What would happen to the resistance of a wire if it is stretched to double its length?

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 of a wire when its length is increased to twice its original length?

resistance is directly proportional to length, so resistance will also become twice.

When a wire of resistance R is stretched and its radius becomes r 2 then its resistance will be?

Explanation: Initial radius of wire, r1 = r and final radius of wire, r2 = r/2 = 0.5r.

What happens to the resistivity of a wire if it is stretched a it will increase B it will decrease C first increases then decreases?

The Resistivity of the wire will not change with the change in length. Resistivity is a property of the wire, it doesn’t depend upon it’s length or cross-sectional area.

What happens to the resistance of a wire of resistance 4ω if it is stretched so that its length becomes double to the original length?

Solution: The resistance of the wire is “directly proportional to” the square in length of wire. So, if the length is stretched to twice then the resistance gets multiplied by four times.

What happens to the resistivity of a wire if it is stretched a it will increase B it will decrease C first increases then decreases D remains the same?

When a wire of resistance R is stretched 3 times of its length the new resistance becomes?

When the wire is stretched to 3 times its original length, its cross section is also reduced to one third of what it was before. By using the above relation, we find the new resistance to be 3×3= 9 times of what it was before! Hope this helps.

What happens to the resistance of the of the wire when its length is?

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.

Where is drawn such that its radius changes from R to R the new resistance is?

Answer: The new resistance is 1/4th of the original resistance.

How the resistance of wire depends on its radius?

We know that the resistance of a wire is inversely proportional to the cross-sectional area of the wire. This means that the resistance of the wire and radius of the wire is inversely proportional to each other. Therefore, as the radius increases, the resistance of wire decreases.

What will be the resistivity of a wire if it is stretched to double of its original length without loss of mass?

If a wire is stretched to double its original length without loss of mass,how will resistivity of the wire be influenced? The resistivity of the wire will not be affected as it is a property of the material and does not depend up on the shape or external dimensions of the material.