Question

The figure below shows two long, parallel wires in cross-section, and the currents they carry are directed out of the page. The left wire carries a current of

I₁ = 2.96 A,

and the right carries a current of

I₂ = 3.45 A.

The two wires are a distance

d = 20.0 cm

apart. Point P is the same distance d above the right wire.

Assume the +x-direction is to the right, and the +y-direction is upward.

A cross-sectional end view of two parallel wires carrying current out of the page is shown. The wires are placed along the same horizontal line, a distance d apart. CurrentI₁ flows through the left wire and currentI₂ flows through the right wire. PointP is a distance d above the right wire.

(a)

What are the magnitude (in T) and direction (in degrees) of the net magnetic field due to the two wires at a point midway between the wires? Measure the angle counterclockwise from the positivex-axis, with the midpoint at the origin of the coordinate system. (Ignore the magnetic field due to the Earth.)

magnitude Tdirection ° counterclockwise from the +x-axis

(b)

What are the magnitude (in T) and direction (in degrees) of the net magnetic field due to the two wires at a point P? Measure the angle counterclockwise from the positivex-axis, with point P at the origin of the coordinate system. (Ignore the magnetic field due to the Earth.)

Answer 1

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