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  • Calculate instantaneous value of current <img alt="i(t)=0.3\sin (50\pi t-\frac{\pi }{2})A" src="https://learn.careers360.com/latex-image/?i%28t%29%3D0.3%5Csin%20%2850%5Cpi%20t-%5Cfrac%7B%5Cpi%

Calculate instantaneous value of current i(t)=0.3\sin (50\pi t-\frac{\pi }{2})A  at t=2ms.

Option: 1

-0.28A


Option: 2

1.23A


Option: 3

-2.1A


Option: 4

1.02A


Answers (1)

best_answer

As we learnt

 

Instantaneous value of current -

 

I\rightarrow Instantaneous current

- wherein

 

 

 i(t)=0.3\sin (50\pi t-\frac{\pi }{2})A  

at t=2ms,

i(2)=0.3\sin (50*\pi *2*10^{-3}-\frac{\pi }{2})A

i(2)=-0.285A

 

Posted by

Gunjita

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