% PULLIN  find pull-in voltage
%   [V]=pullin(a,g,L,W,E)
%   Calculate the pull-in voltage for the spring/gap structure in HW7
%   a,g,L,W assumed in meters, E in Pascals

function [V]=pullin(a,g,L,W,E)


eps0 = 8.85e-12;

vsquared = 8 .* E .* a.^3 .* g.^3/ (27* eps0 .* W .* L.^3) ;
V = sqrt(vsquared);