Two very long, straight wires carry currents as shown in the figure ( Figure 1 )

Question

Two very long, straight wires carry currents as shown in the figure (Figure 1) .

Figure 1 of 1

Part A

For the case (a) shown, find all locations where the net magnetic field due to these wires is zero. Assume if you want to draw a line it would be enough to specify only two points.

Part B

For the case (b) shown, find all locations where the net magnetic field due to these wires is zero. Assume if you want to draw a line it would be enough to specify only two points.

Part C

For the case (c) shown, find all locations where the net magnetic field due to these wires is zero. Assume if you want to draw a line it would be enough to specify only two points.

Explanation / Answer

a)10/x=10/y
all points on y=-x(2nd quadrant)
b)1 st quadrant
3/y=10/x
all points on 3x-10y=0
c)3 rd quadrant
20/x=20/y
all points on x=y

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