8.02
Exam 1 Information
Fall 2007
TEST ONE Thursday Evening 7:30  9:30 pm October 11, 2007.
The Friday class
immediately following on October 10, 2007 is canceled because of the evening exam.
What We Expect From You On The Exam
(1) Ability to calculate the electric field of discrete & continuous charge distributions.
In the
latter case, although we will not expect to do nonstraightforward integrals, you should be
able to set up problems like: calculating the field on the perpendicular bisector of a finite line
of charge; the field on the axis of a ring of charge; and so forth.
(2) To be able to recognize and draw the electric field line patterns for a small number of discrete
charges, for example, from two point charges (of same or opposite charge)
(3) To be able to apply the principle of superposition to electrostatic problems.
(4) An understanding of how to calculate the electric potential of a discrete set of charges, that is
the use of the equation
V
(
r
)
=
q
i
4
πε
o
r
−
r
i
i
=
1
N
∑
for the potential of
N
charges
q
i
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 Fall '07
 Hudson
 Magnetic Field, Electric charge

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