Posted by **Anne** on Sunday, February 12, 2012 at 6:28pm.

The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides. All four wires are much longer than the sides of the square. The net magnetic field at the center of the square is 91.5 µT. Calculate the current I.

- Physics 2 -
**bobpursley**, Sunday, February 12, 2012 at 6:45pm
It matters how the current is flowing in each of the wires.

- Physics 2 -
**Charlotte**, Friday, February 1, 2013 at 3:36pm
If the currents are flowing in the same direction, they repel one another and you take the difference of I for wires in parallel with each other. If they flow in the same direction you take the sum of I. Do that for both sides of parallel lines and add your equations then set the equation equal to the net magnetic field in the center.

## Answer This Question

## Related Questions

- Geometry (answer please) - 1. A vertical pole 24ft. high is to be braced ...
- Physics - (the drawing is of a square with each side equaling L and the ...
- Physics - Four long, straight wires are parallel to each other and their cross-...
- physics - Two long, straight wires are separated by 0.12 m. The wires carry ...
- Geometry - A vertical pole 24ft. high is to be braced securely by four wires ...
- Physics - The figure below shows two current carrying wires and the directions ...
- physics - Four identical positive charges q are placed at the four vertices of a...
- 11th grade physics - Four identical positive charges q are placed at the four ...
- physics - Two identical wires with resistance,R and mass,m rest on two smooth ...
- Physics II - two perpendicular, long, straight wires, both of which lie in the ...

More Related Questions