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Q: Why is it necessary to state the gauge length when reporting the percentage elongation?

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It is necessary because measuring tools help you measure the length of an object accurately.

The percentage error in the area of the square will be twice the percentage error in the length of the square. This is because the error in the length affects both the length and width of the square, resulting in a compounded effect on the area. Therefore, if there is a 1 percent error in the length, the percentage error in the area would be 2 percent.

You cannot. You may convert one inch as a proportion of another length as a percentage but no other length is given.

Not only is it necessary, it is not advised.

It is necessary to know which of the five given measures refer to the trapezium [cross section] and which one is the length of the prism. Furthermore, it is necessary to know which two of the four sides of the trapezium are the parallel ones.It is necessary to know which of the five given measures refer to the trapezium [cross section] and which one is the length of the prism. Furthermore, it is necessary to know which two of the four sides of the trapezium are the parallel ones.It is necessary to know which of the five given measures refer to the trapezium [cross section] and which one is the length of the prism. Furthermore, it is necessary to know which two of the four sides of the trapezium are the parallel ones.It is necessary to know which of the five given measures refer to the trapezium [cross section] and which one is the length of the prism. Furthermore, it is necessary to know which two of the four sides of the trapezium are the parallel ones.

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Elongation is the percentage of the final dimension relative to the initial dimension. For instance; A 1m length of metal is put under a load and is stretched to a final length of 1.5m The elongation of this is 150% because the final length is 150% of the initial length.

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The elongation of a uniform bar of length is double the elongation when applied any external load

To calculate percent elongation with an equation: [(final length - initial length) / initial length] x 100 = percent elongation On a graph - To calculate percent elongation, draw a line to the x-axis from the point of fracture parallel to the straight line part of the graph. The extension at this point is then divided by the gauge length.

Strain is the measure of length change per unit length. Elongation usually refers to strain under load at failure point.

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find it out . It's measured in the lab after a pull test. Steel elongation can be measure manually or using device called extentiometer. To measure elongation of steel manually we must give 2 punch marks on the specimen with specified length (see standard/code such as ASTM, ASME etc for specimen shape and size) addressed L0. After a pull test (tension/tensile test) we measure the distance between that 2 punch marks and addressed L1. Thus, the elongation of the specimen in percentage is ((L1-L0)/L0) x 100%. Measure elongation using extentiometer is lot more easier because we can directly read the result. But this method limited for small elongation measurement only.

Greater concentration of auxin in the cells facing light restrict cell elongation whereas on the other side (away from light) more elongation of cells takes place due to optimum amount of auxin. thus, the shoots turn towards light.

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It is necessary because measuring tools help you measure the length of an object accurately.

The percentage error in the area of the square will be twice the percentage error in the length of the square. This is because the error in the length affects both the length and width of the square, resulting in a compounded effect on the area. Therefore, if there is a 1 percent error in the length, the percentage error in the area would be 2 percent.

You cannot. You may convert one inch as a proportion of another length as a percentage but no other length is given.