Two conducting parallel plates of area A are separated by a small distance d. Th
ID: 2184686 • Letter: T
Question
Two conducting parallel plates of area A are separated by a small distance d. The plate at x=0 carries a total charge +Q and the plate at x=d carries -Q.
a) Find the electric field between the plates.
b) Find the electrostatic potential V(x) in the region between the plates, assuming V(0)=0.
c) Find the energy density between the plates.
d) Find the potential difference deltaV between the plates. Which plate is at the higher potential?
e) Find the capacitance of the configuration.
f) Find the total energy stored.
Explanation / Answer
E = 2/
V = d * /
=Q/A
a)E=2q/A
b)v=2qx/A for x<=d
=0 for x>d
c)E/A=2*q^2d/A^2*
d)potential difference=2qd/A
plate +q is at a higher potential as E is increasing
e)
c=A/d
f)E=.5cV^2=.5*A*4*q^2*d^2/d*A^2*^2
=2q^2d/A
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.