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  • A torque meter is calibrated to reference standards of mass, length and time each with <img alt="\mathrm{ 5 \%}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B%205%20%5C%25%

A torque meter is calibrated to reference standards of mass, length and time each with \mathrm{ 5 \%} accuracy. After calibration, the measured torque with this torque meter will have net accuracy of:

Option: 1

15 \%


Option: 2

25 %


Option: 3

75 \%


Option: 4

5 \%


Answers (1)

best_answer

\mathrm{{[\tau] } =\left[M^{\prime} L^2 T^{-2}\right] }

\mathrm{\frac{\Delta \tau}{\tau} =\frac{\Delta M}{M}+\frac{2 \Delta L}{L}+2 \frac{\Delta T}{T} }

\mathrm{\frac{\Delta \tau}{t} \times 100 =\left(\frac{\Delta M}{M}+2 \frac{ \Delta L}{L}+2\frac{\Delta T }{T}\right) \times 100 }

=25 \%

Hence 2 is correct option.



 

Posted by

shivangi.bhatnagar

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