Question

In: Physics

Two long, straight, parallel wires are separated by 0.50 m and lie in the X-Y plane....

Two long, straight, parallel wires are separated by 0.50 m and lie in the X-Y plane. Wire “A” has a current of 1.4 A traveling in the -Y direction and wire “B” has a current of 6.3 A flowing in the +Y direction. What is the magnitude of the magnetic field at the midpoint between the two wires?

A. 4.5 µT

B. 2.5 µT

C. 1.2 µT

D. 3.9 µT

E. 0.98 µT

Expert Solution

Magnetic field due to a straight current carrying wire is

The current in wire A is in -Y direction and current in B is +Y direction.

At the midpoint between the two wires, the magnetic field due to wire A is ( out of the page)

Magnetic field due to wire B is ( out of the page)

Net magnetic field at the midpoint is

Magnitude of magnetic field is

-----------------------------------

If the current in wire A is in +Y direction and current in B is +Y direction.

At the midpoint between the two wires, the magnetic field due to wire A is ( into the page)

Magnetic field due to wire B is ( out of the page)

Net magnetic field at the midpoint is

Magnitude of magnetic field at the midpoint is

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genius_generous answered 2 years ago

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