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The potential difference across a 4 H in...

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`

Text Solution

Verified by Experts

The correct Answer is:
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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