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Please answer both the questions
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Asked by Prashant DIGHE | 18 Jul, 2019, 05:23: PM
answered-by-expert Expert Answer
current variation in initial 3 seconds, I = I0 t2 ......(1)
 
at t = 3 s , we have I = 18 A,  if we substitute these values in eqn.(1), we get I0 = 2 A/s2
 
average current <I1> in first 3 seconds :-  begin mathsize 14px style less than I subscript 1 greater than space equals space 1 third integral subscript 0 superscript 3 2 t squared d t space equals space 6 space A end style
average current <I2> in 12 seconds :-  begin mathsize 14px style less than I subscript 2 greater than space equals space 1 over 12 open parentheses integral subscript 0 superscript 3 2 t squared d t space plus space 18 cross times 9 close parentheses space equals space 15 space A end style
Answered by Thiyagarajan K | 18 Jul, 2019, 09:10: PM

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