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An alternating voltage V = 100 sin omega...

An alternating voltage `V = 100 sin omega t` is applied across an `LCR` circuit as shown. At the instant when voltage drop across source is `50 sqrt(3)` volts then at that instant
`R = 30 Omega" "X_(L ) = 60 Omega" "X_(C ) = 20 Omega`

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