BryceHarper
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The current in an inductor when energy is stored. Please help!
What's the current in a 15mH inductor when the stored energy is 42μJ
E = 1/2 L i^2
.000042J = (.5)(.015H)(i^2)
.000042J = (.0075)(i^2)
.0056 = i^2
√ (.0056) = i
.0748331 = i
I need to put the answer in with only two sig figs so i put in .07 but it was wrong
What am I doing wrong?
Homework Statement
What's the current in a 15mH inductor when the stored energy is 42μJ
Homework Equations
E = 1/2 L i^2
The Attempt at a Solution
.000042J = (.5)(.015H)(i^2)
.000042J = (.0075)(i^2)
.0056 = i^2
√ (.0056) = i
.0748331 = i
I need to put the answer in with only two sig figs so i put in .07 but it was wrong
What am I doing wrong?
