Question

If x = (a - b), the maximum percentage error in the measurement of x will be ______.

Options

• \[\left[\frac{\Delta\mathrm{a}}{\mathrm{a-b}}-\frac{\Delta\mathrm{b}}{\mathrm{a-b}}\right]\times100\]

• \[\left[\frac{\Delta\mathrm{a}}{\mathrm{a-b}}+\frac{\Delta\mathrm{b}}{\mathrm{a-b}}\right]\times100\]

• \[\left[\frac{\Delta\mathrm{a}}{\mathrm{a}}+\frac{\Delta\mathrm{b}}{\mathrm{b}}\right]\times100\]

• \[\left[\frac{\Delta\mathrm{a}}{\mathrm{a}}-\frac{\Delta\mathrm{b}}{\mathrm{b}}\right]\times100\]

Answer 1

If x = (a - b), the maximum percentage error in the measurement of x will be \[\left[\frac{\Delta\mathrm{a}}{\mathrm{a-b}}+\frac{\Delta\mathrm{b}}{\mathrm{a-b}}\right]\times100\].