Current in a 15mH inductor with 42μJ stored energy

[BryceHarper]

The current in an inductor when energy is stored. Please help!

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?

 

[tiny-tim]

Hi BryceHarper!

I need to put the answer in with only two sig figs so i put in .07 but it was wrong

.07 is two decimal places but only one significant figure

 

[BryceHarper]

I'm dumb haha. Thanks!