Back to Magnetic Fields, Field Lines, and Force — Problem 3 · Task Set 12

Exercises: Magnetic Fields, Field Lines, and Force

Work through each section in order. Show your work where indicated. For direction problems, state your answer as a cardinal direction (up, down, left, right, into page, out of page) or compass direction as appropriate.

Grade 11·22 problems·~30 min·OpenStax Physics (High School)·section·sec-20-1

Work through problems with immediate feedback

Fluency Practice

A current-carrying wire lies along the $x$ -axis with current flowing in the $+x$ direction (to the right). A uniform magnetic field $\mathbf{B}$ points in the $+y$ direction (upward). Using the force right-hand rule for a wire (fingers along current, curl toward $B$ , thumb gives $F$ ), what is the direction of the magnetic force on the wire?

Upward ( $+y$ )

Into the page ( $-z$ )

Out of the page ( $+z$ )

To the right ( $+x$ )