Two long, parallel wires carry currents of I 1 = 2.74 A and I 2 = 5.05 A in the

Question

Two long, parallel wires carry currents of I1 = 2.74 A and I2 = 5.05 A in the direction indicated in the figure below. (Choose the line running from wire 1 to wire 2 as the positive x-direction and the line running upward as the positive y-direction.)

magnitude     Two long, parallel wires carry currents of f1 = 2.74 A and f2 = 5.05 A in the direction indicated in the figure below. (Choose the line running from wire 1 to wire 2 as the positive x-direction and the line running upward as the positive y-direction.) Find the magnitude and direction of the magnetic field at a point midway between the wires (d = 20.0 cm). Find the magnitude and direction of the magnetic field at point P, located d = 20.0 cm above the wire carrying the 5.05-A current.

Explanation / Answer

a)0

b)B1sin45+B2=Bx in x direction

B1 cos45=By in y direction

Bx=2*10^-7(2.74sin45/.28+5.05/.2)=64.34*10^-7

By=2*10^-7*2.74cos45/.28=13.84*10^-7

resultant=6.58*10^-8=.0658

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