1.

The potential difference across a 4 H inductor vary with time is as shown. The current is Zero at `t = 0,` Then the current at time `t =2s` A. `1A`B. `2A`C. `3A`D. `4A`

Answer» Correct Answer - B
`V_(L)=L(di)/(dt)`
`di=(V_(L))/(L)dt`
`L(i_(f)-i_(0))` =area under `(V_(L)-t)`graph
`4(i_(f)-i_(0))=(1)/(2)xx8xx2`
`i_(f)=2A`


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