- #1

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- Homework Statement
- What is the magnetic field at the position of the dot in the figure?

- Relevant Equations
- Cross Product

So when evaluation the cross product of the velocity of the charge and the unit vectors associated with the point I am getting

v x r = j x [ i + j].

Well j x j is 0.

j x i = -k, but yet the answer is positive. Why is this?

v x r = j x [ i + j].

Well j x j is 0.

j x i = -k, but yet the answer is positive. Why is this?