Question

Two parallel, very long straight wires separated by 10cm are carrying 2.0A and 4.0A in opposite...

Two parallel, very long straight wires separated by 10cm are carrying 2.0A and 4.0A in opposite directions.Find:
a) The magnetic field at points midway between the wires.
b) Where the magnetic field is zero.
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Answer #1

Data Given

I1 = 2.0 A, I2 = 4.0 A; Sepration d = 10cm = 0.1 m

Part A) Magnetic Field at midpoint is given by

Part B)

Let at a point Q magnetic field is zero

So Magnetic field is zero at point Q which is 10 cm left of 2.0 A wire.

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