Homework Statement
We have two half-spherical electrodes, arranged so that they produce a spherically symmetric electric field. What is the magnitude of the electrical force on an electron between the two electrods?
Specifications:
Distance between electrodes: d=0.04 m
Radius for first...
Thank you!
Looks like the problem is lack of knowledge of multivariable calculus from my part. Thank you for pointing me in the right direction - sometimes asking the right questions can be as hard as finding the right answer!
I'm reading about the Principle of Least Action.
As a prelude to it, we look at the functional
J(x)=\int f(y(x),y'(x);x) dx
where the limits of integration are x_1 and x_2.
We want to find the function y(x) that gives the functional an extremum.
Now, to do this, we write any possible function...