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  • What fraction of peak value is root mean square value?Option: 1 70.7%<

What fraction of peak value is root mean square value?

Option: 1

70.7%i_0


Option: 2

63.7%i_0


Option: 3

80.1%i_0


Option: 4

90.2%i_0


Answers (1)

best_answer

As we learnt

 

Root mean square i_{rms} -

 

i_{rms}= \sqrt{\frac{i_{1}^{2}+i_{1}^{2}+----}{\eta }}= \sqrt{\overline{1}^{2}}

\sqrt{\frac{\int_{0}^{T}i^{2}dt}{\int_{0}^{T}dt}}= \frac{{i_{0}}'}{\sqrt{2}}= 0.707\, {i}'_{0}

                                        = 70.7 % {i}'_{0}

- wherein

{i}'_{0} - Peak Current

 

 

 

Posted by

Divya Prakash Singh

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