Parallel wires carrying currents will exert forces on each other. Each wire produces a magnetic field, which influences the other wire. When the currents in both wires flow in the same direction, then the force is attractive. When the currents flow in opposite directions, then the force is repulsive.
Two parallel wires that are 17 mm apart each have a current of 3.2 amps.
Determine the magnetic field from one wire at the location of the second wire. (Include units with answer.)

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

Full change in the electric plus system