In an inductor of self-inductance L=2mH, current changes with time acc – McqOptions

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1.	In an inductor of self-inductance L=2mH, current changes with time according to relation \[i={{t}^{2}}{{e}^{-t}}\]. At what time emf is zero?
A.	4s
B.	3s
C.	2s
D.	Is
Answer» D. Is

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