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.

Parallel currents.

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?

Answer Section#

Part 2#

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

Answer Section#

  • 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.

pl-submission-panel#

Attribution#

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.