Two long parallel wires carry unequal currents in the same directions and are separated by a distance of 20 cm. The ratio of the currents is 3 to 1. The magnitude of the total magnetic field at the midpoint between the wires is 6.4 µT. What is the value of the larger of the two currents (in A) is: Select one: O A. 9.60 О В. 1.60 ОС. 3.20 O D. 8.53 O E. 4.80

As shown in the figure below, two long parallel wires (1 and 2) carry currents of I1 = 3.00 A and I2 = 5.10 A in the direction indicated. (a) Determine the magnitude and direction of the magnetic field at a point midway between the wires (d = 10.0 cm). and (b) Determine the magnitude and direction of the magnetic field at point P, located d = 10.0 cm above wire 1.

Three infinite straight wires are are parallel to each other and a distance of d = 37.9 cm apart. The currents are: I₁ =14A, I2 =7A, I3 =20 A. The directions of the currents are indicated in the figure. Determine the magnitude of the net magnetic field at a point midway between wire #1 and wire #2 (in µT). #1 #2 #3 (X) d Р X d 14.4239 margin of error +/- 1%

Two long wires are oriented so that they are perpendicular to each other. At their closest, they are 20.0 cmcm apart (Figure 1).   What is the magnitude of the magnetic field at a point midway between them if the top one carries a current of 22.0 AA and the bottom one carries 13.5 AA ? Express your answer using three significant figures.   B=?