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A 1.5 mH inductor in an LC circuit store...

A 1.5 mH inductor in an LC circuit stores a maximum energy of `30 mu J`. What is the maximum current in the circuit ?

A

0.1

B

0.2

C

0.3

D

0.4

Text Solution

Verified by Experts

The correct Answer is:
B
Here, `L = 1.5 mH = 1.5 xx 10^(-3) H`,
`E = 30 mu J = 30 xx 10^(-6) J, I = ?`
From `E = (1)/(2) LI^(2)`
`I = sqrt((2E)/(L)) = sqrt((2 xx 30 xx 10^(-6))/(1.5 xx 10^(-3))) = 0.2 A`
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