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PHY2061
R. D. Field
Department of Physics
chp31_2.doc
University of Florida
DC Circuit Rules
Loop Rule:
The algebraic sum of the
changes in
potential
encountered in a complete
traversal of any
loop
of a circuit must be
zero
.
∆
V
i
loop
=
∑
0
.
Junction Rule:
The sum of the currents entering any
junction
must be equal the sum of the currents leaving
that junction.
II
i
in
i
out
=
∑∑
Resistor:
If you move across a
resistor
in the direction
of the current flow
then the potential change
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This note was uploaded on 05/31/2011 for the course PHY 2061 taught by Professor Fry during the Spring '08 term at University of Florida.
 Spring '08
 FRY
 Physics, Current

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