Consider three wires which carry the same total currents I uniformly distributed over the cross sections....
Consider three wires which carry the same total currents I uniformly distributed over the cross sections. Wire #1 has radius R/2; wire #2 has radius R; wire #3 has radius 2R. Rank magnetic fields created by these wires at distance R/2 from the center, greatest first.
a. 1>2>3
b. 1=2>3
c. 3>2>1
d. 3=2>1
e. magnetic fields are the same
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Consider three wires which carry the same total currents I
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