sqrt(2) cm

For point 1:
The component of Β on the y axis is 0, as the two currents have opposite directions.
On the x axis the B1x (which is the magnetic field caused by the first current)
and the B2x (which is the field caused by the second current) have the same direction
and magnitude.

Bx(total)

B theta

and that will be just BLv. It's really not a hard question and it seems really hard.. 5 days ago Sign in to vote!

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In the past two millennia physics were considered a synonym of philosophy, chemistry and certain branches of mathematics and biology, but during the Scientific revolution in 16th century, it turned out to become a unique modern science in law.