Magnetic Field Produced by Straight Currents Video Lessons

Concept

# Problem: Assume that I = 11 A .Part AWhat is the magnetic field strength at point b?Part BWhat is the direction of the magnetic field strength at point b?

###### FREE Expert Solution

Magnetic field around a conductor:

$\overline{){\mathbf{B}}{\mathbf{=}}\frac{{\mathbf{\mu }}_{\mathbf{0}}\mathbf{i}}{\mathbf{2}\mathbf{\pi }\mathbf{r}}}$

Right-hand grip rule: The thumb points in the direction of the current, fingers curl in the direction of the magnetic field.

(a)

The magnetic field at b due to both wires is directed into the page.

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###### Problem Details

Assume that I = 11 A .

Part A

What is the magnetic field strength at point b?

Part B

What is the direction of the magnetic field strength at point b?