# Field due to parallel currents#

The two long, parallel wires shown in the figure carry currents in the same direction (towards the bottom of the screen). Note that the figure is not drawn to scale.

## Part 1#

If $$I_1 = {{params.I1}}\rm\ A$$, $$r_1 = {{params.r1}}\rm\ cm$$, $$I_2 = {{params.I2}}\rm\ A$$, and $$r_2 = {{params.r2}}\rm\ cm$$, what is the magnitude of the magnetic field at point P?

## Part 2#

What is the direction of the magnetic field at point P?

• Out of the screen.

• Into the screen.

• Towards the top of the screen.

• Towards the bottom of the screen.

• To the right.

• To the left.

• The magnetic field is zero.