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A 1.5 mu F capacitor is charged to 57 vo...

A `1.5 mu F` capacitor is charged to 57 volt.The charging battery is then disconnected and a 12 mH coil is connected across the capacitor so that is zero, what is the maximum value of current in the coil ?

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As `R = 0`, therefore, `(1)/(2) LI^(2) = (1)/(2) CV^(2)`
`:. I = V sqrt((C )/(L)) = 57 sqrt((1.5 xx 10^(-6))/(12 xx 10^(-3)))`
`= 63.72 xx 10^(2) A = 637.2 mA`
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