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If charge flown through a wire is given by `q=3sin(3t)`, then Q. Find out the current flown through the wire at `t=(pi)/(9)` second.A. `4.5 Amp`B. `4.5sqrt(3)Amp`C. `sqrt(3)//sqrt(2)Amp.`D. `9 Amp`

Answer» Correct Answer - A
`i=(dq)/(dt)=3xx3cos(3t)rArri|_(t=(pi)/(9))=9cos(3.(pi)/(9))`
`=9cos((pi)/(3))=(9)/(2)A`


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