Physics

Problem

Two long, straight wires are parallel to the x–axis and lie on the x–axis at

x=0

and

x=6\,\text{cm}

. Each wire carries a current

I

directed into the page. Point

P

is located at (

3\,\text{cm}

4\,\text{cm}

). Which of the following gives the direction of the net magnetic field at point

P

? a) Toward –y (downward) b) Toward +y (upward) c) Toward +x (to the right) d) Toward –x (to the left)