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RCB
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out of interest does cross sectional area change when a force is applied (lets say I had a wire and I applied a force to it, the wire would stretch ) does its cross sectional area change
Cross sectional area refers to the area of a cross section of an object. It is typically measured in square units, such as square meters or square inches.
Cross sectional area can be calculated by measuring the length and width of a cross section of an object and multiplying them together. The resulting value will be in square units, representing the area.
Young's Modulus, also known as the elastic modulus, is a measure of the stiffness of a material. It represents the amount of stress that a material can withstand before it begins to deform.
Young's Modulus is calculated by dividing the stress applied to a material by the strain it experiences. The resulting value is expressed in units of pressure (such as megapascals) and represents the stiffness of the material.
The cross sectional area of a material is directly related to its Young's Modulus. A larger cross sectional area will result in a higher Young's Modulus, indicating a stiffer material. Conversely, a smaller cross sectional area will result in a lower Young's Modulus, indicating a less stiff material.