Answer:Current carrying loops act as bar magnets with associated lines of the field, which are represented by the arrows. As a result, the existing earth’s magnetic field is altered, resulting in a deflection. There is a magnetic field in both directions and at a constant magnitude. Magnetic field lines emerge from the north pole and pass through the south pole to the south pole. The degree to which the field lines are close together in a diagram represents the strength of the magnetic field in that area. Due to the fact that field lines cannot cross each other, two values of net field cannot exist as a single point. There can only be one value, a single net value, in the universe. If the lines of field in a given region are shown to be parallel and evenly spaced, it is assumed that the field is uniform in that region.