Chapter 4

When we move the supports together the charges are pulled together by the tension
transmitted
parallel to the electric field. We artificially terminate the field lines at a fixed
distance
from the charges to avoid visual confusion.
4.7 Problem-Solving Strategies
In this chapter, we have shown how electric field can be computed using Gauss’s law:
qenc
Φ E = ∫∫ E⋅ dA
=
ε
S
The procedures are outlined in Section 4.2. Below we summarize how the above
procedures can be employed to compute the electric field for a line of charge, an infinite
plane of charge and a uniformly charged solid sphere.
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