In double line designs, the stitches are taken with ”spaces” in between. This technique creates a clear distinction between the two lines, ensuring that the design remains defined and distinct. The spaces between the stitches add texture and allow the design to stand out more prominently on the fabric. Double line designs are often used in embroidery and decorative stitching to add dimension to patterns.
Draw the pattern of the magnetic field lines for the two parallel straight conductors carrying current of same magnitude 'I' in opposite directions as shown. Show the direction of magnetic field at a point O which is equidistant from the two conductors. (Consider that the conductors are inserted normal to the plane of a rectangular cardboard.)