Question

Two infinetely long, parallel wires are lying on the ground at distance a=1cm, a=1cm apart as shown in Fig. A third wire, of length L=10m and mass 400g, carries a current of I1=100A and is levitated above the first two wires, at a horizontal position midway between them. The infinitely long wires carry equal currents I1 and I1 in the same directions, but in the direction opposite that in the leviated wire. What current must the infinately long wires carry so that the three wires form an equilateral triangle?

Answer #1

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Two long straight wires are parallel and 8.4 cm apart. They are
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Two long wires are aligned parallel to each other and separated
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Consider two parallel wires placed a distance of 19.5 cm apart.
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Two long wires are aligned parallel to each other and separated
by 20.0 cm. One wire carries a current, I1and
the other carries a current I2 in the opposite
direction, where for the current magnitudes, I2
= 3 I1. The magnitude of the magnetic field at
a point midway between the wires is 4.0 μT. Determine
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a.
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b.
no.
c.
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d.
yes, midway between the wires
e.
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