Unformatted text preview: possible. The outer loop gives
E (4) E This is the sum of equations (1) and (2), so it is not independent, but it could be substituted
for one of them.
Substituting into (2) eliminates giving
(5) Adding equations (1) and (5) term-by-term eliminates Substituting this value of Finally, (3) gives into (1) gives giving 2 2. [20pt] A rectangular loop of wire, with segments labeled
A, B, C, D, is placed below a very long straight wire as shown
in the figure. There is a 3.5 A current in both wires, directed
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