Two long, parallel wires carry currents of I1 = 3. 10 A and I2 = 5. 50 A in the

Question

Two long, parallel wires carry currents of I1 = 3. 10 A and I2 = 5. 50 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 gamma-direction. ) Find the magnitude and direction of the magnetic field at a point midway between the wires (d = 20. 0 cm), magnitude muT direction degree (counterclockwise from the + x-axis) Find the magnitude and direction of the magnetic field at point P, located d = 20. 0 cm above the wire carrying the 5. 50-A current. magnitude muT direction degree (counterclockwise from the + x-axis)

Explanation / Answer

A) B net =B2-B1= 4.8*10^-6 and direction 270 degree

B) B2 = -5.5*10^-6 T

B1 = +1.55*10^-6 i -1.55*10^-6 j

Net = 1.55*10^-6 i - 7.05*10^-6 j

= 7.21 *10^-6

direction = 282.399 degrees anticlockwise from postive x axis.

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