Volume = cross sectional area * lengthArea = 2* cross sectional area + perimeter of cross section * length
If the diameter doubles (x2), the cross-sectional area quadruples (x4).
If the wire has a circular cross-section - the usual case - use the formula for the circle: pi x radius squared.
Other things being equal, more cross-sectional area will cause less resistance.
Because the volume of the cylinder is proportional to the cross sectional area of the cylinder. The cross sectional area is a circle and the area of a circle is pi*r2.
pi*radius2
To derive the cross sectional area of a two liter bottle do the following formula. Area = (radius * 2.54 cm/in)^2 * pi = X cm^2.
You cannot create a cross sectional area of a rectangle. You can only create cross sectional areas for triangular shapes.
the larger the cross sectional area, the smaller the resistance
To calculate Cross Sectional Area: Width x Depth
3*sqrt(3)/2*r^2
Volume = cross sectional area * lengthArea = 2* cross sectional area + perimeter of cross section * length
R is the electrical resistance,A is the cross-sectional area,l is the length of the piece of material.
The cross sectional area of a slab can be found by squaring the height of the slab.
Cross Sectional Area = Width x Average Depth
cross-sectional area = 0.5*(sum of parallel sides)*height
reduction ratio= initial cross sectional area/final cross sectional area