(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 0.49 m copper rod with a mass of 0.13 kg carries a current of 10 A in the positive x direction. Let upward be the positive y direction.

1) What is the magnitude of the minimum magnetic field needed to levitate the rod?

2) What is the direction of the minimum magnetic field needed to levitate the rod?

pos x direction, neg x, pos y, neg y, pos z, neg z

2. Relevant equations

Right Hand Rule?

3. The attempt at a solution

I figured out part 1 but not sure on part two. any guidance would be appreciated. I'm thinking it's positive y direction. Part 1 answer was B = .26 T fwiw

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Magnetic Field Direction

**Physics Forums | Science Articles, Homework Help, Discussion**