- #1
Runaway
- 48
- 0
Homework Statement
Homework Equations
C = k *[tex]\epsilon[/tex]0 * A / d
The Attempt at a Solution
I attempted setting the equation up as:
C/2 (because rolling the capacitor doubles C) = k * [tex]\epsilon[/tex]0 * L * W / d
9.49 * 10-8 F/2 = 3.9 * 8.85 * 10-12C2 / (N * m2) * L * 7.43cm / .00282 mm
9.49 * 10-8 F/2 * .00282 mm = 3.9 * 8.85 * 10-12C2 / (N * m2) * L * 7.43cm
(9.49 * 10-8 F/2 * .00282 mm)/(3.9 * 8.85 * 10-12C2 / (N * m2) *7.43cm) = L
L= 0.05218 meters
It's an online assignment and it says .05218 isn't the right answer, can someone show me where I've messed up?