Lecture 7 -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Conduc'ng
Sphere
with
total
charge
Q
 Cross
sec'on
of
a
conduc'ng
sphere
 All
charges
go
to
the
surface
of
the
sphere
and
uniformly
distribute
themselves
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 Cross
sec'on
of
a
conduc'ng
sphere
 Electric
Field
inside
is
zero
 Because
there
are
no
charge
inside
 (Gauss’s
Law)
 Cross
sec'on
of
a
conduc'ng
spherical
shell::
Faraday
cage
 Einside
=
0
:
no
charge
can
reside
here
 Conduc've
Sphere
 Surface
of
the
conduc've
sphere
 ϕ
=
EA
 σ
 E
=
0
 ϕ
=
EA
 ϕ
=
σA/ε0
 E
=
σ/ε0
 Ques'on
#1

 Can
you
use
Gauss’s
Law
to
solve
the
electric
field
by
charged
disk?
 
 
[For
calcula'ng
electric
field
at
any
arbitrary
point]
 A.  Yes
 B.  No
 Ques'on
#2
 Can
you
use
Gauss’s
Law
to
solve
the
electric
field
by
a
dipole?
 
 
[For
calcula'ng
electric
field
at
any
arbitrary
point]
 A.  Yes
 B.  No
 ...
View Full Document

This note was uploaded on 07/16/2011 for the course PHY 2049 taught by Professor Saha during the Fall '08 term at University of Central Florida.

Ask a homework question - tutors are online