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# Engineering

The percentage errors in quantities P, Q, R and S are 0.5%, 1%, 3% and 1.5% respectively in the measurement of a physical quantity A= \frac{p^{3}Q^{2}}{\sqrt{R}S}

Answers (1)
S Safeer PP

@Anmol

\frac{\Delta A}{A}\times 100\% =3\frac{\Delta P}{P}\times 100\%+2\frac{\Delta Q}{Q}\times 100\%+1/2 \frac{\Delta R}{R}\times 100\%+\frac{\Delta S}{S}\times 100\%

= 3\times 0.5+2\times 1+1/2\times 3+1.5=6.5 \%

 

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