Reading Tutorial O-it points s2016 22.10 WA060. Ask Your Teach The wire carrying
ID: 1542142 • Letter: R
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Reading Tutorial O-it points s2016 22.10 WA060. Ask Your Teach The wire carrying 375 A to the motor of a commuter train feels an attractive force per length of 3.20 x 10 N/m due to a parallel wire carrying 5.00 A to a headlight. unit (a) How far apart are the wires? (b) Are the currents in the same direction? O Yes Reading -1 points OSCoPhys2016 22.10. My Notes Ask Your Teacher Two long wires (1 and 2) run parallel to each other with wire 1 suspended directly above wire 2. The wires (1 and 2) respectively carry currents of h 30.0 A and 12 67-0 A and they both have a weight per unit length of 0.083 N/m. Determine the distance that wire 1 should be mounted above wire 2 in order for it to be held in place by magnetic repulsion Additional Materials My Notes o Ask Your Teacher 9. O -1 points oscoPhys2016 22.10 WA064. Two long straight current-carrying wires run parallel to each other. The current in one of the wires is s.7 Ai their separation is 4.5 cm and they repel each other with a force per unit length of 2.5 x 10' N/mExplanation / Answer
7) a) let the distance between the wires is d
as F = u0 * I1 * I2 * L/(2pi * d)
3.2 *10^-2 = 4pi *10^-7 * 375 * 5/(2pi * d)
solving for d
d = 0.0117 m
the distance between the wires is 0.0117 m
b) as the force is attractive
Yes , the current is in the same direction
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