How does area of cross section affect resistance?

It is inversely proportional to the area of cross section of the wire. The more the area of cross section of the wire,the less is the resistance and the less the area,the more is the resistance.

How do you find the resistance of A cross-sectional area?

The resistance R of a cylinder of length L and cross-sectional area A is R=ρLA R = ρ L A , where ρ is the resistivity of the material.

What is cross-sectional area of cylinder?

The cross-sectional area of a cylinder is equal to the area of a circle if cut parallel to the circular base. Thus, the cross-sectional area of this slice is the area of a circle with the radius equal to the radius of the provided cylinder.

What happens to resistance as cross-sectional area increases?

On increasing the area of cross-section, resistance decreases. This is because resistance is inversely proportional to area.

How is resistance of a cylinder related to its cross sectional area?

In fact, R is inversely proportional to the cylinder’s cross-sectional area A. Figure 1. A uniform cylinder of length L and cross-sectional area A. Its resistance to the flow of current is similar to the resistance posed by a pipe to fluid flow. The longer the cylinder, the greater its resistance.

What happens to resistance as cross section increases?

Plot a graph of resistance, R, in Ω on the y-axis against cross section area, A, in mm2 on the x-axis. Draw the line of best fit. We can see from the graph that as the cross section area, A, increases, the resistance, R, decreases.

Is the cross sectional area of a cylinder a circle?

Considering that the cylinder has two circular faces on both ends, the shape of the cross section is bound to be a circle. A thin cross-sectional slice of a cylinder is going to be a circle and therefore, the cross sectional area formula of a cylinder is going to be same as the formula for area of a circle.

What is the value of cross sectional area?

Solution: Using the above formula for calculation, the value of cross sectional area will be: Cross Sectional Area = π x (3 meter)2 = 3.14159265 x 9 = 28.2743385 m2