Capacitor
1. Kappa
For
,
if we plot C vs 1/d, then the slope
,
and therefore,
,
and
.
Since the dielectric constant is a constant, the first term is zero.
2. A
For the uncertainty of A, since
,
we have
.
3. Pressure
Since
P = W/A,
then assuming the weight is a constant, we have
.