Grid North:
Grid North is the direction of the vertical grid lines shown on a map, pointing towards the top of the map.
Magnetic Variation:
Magnetic variation is the angular difference between True North and Magnetic North. It varies based on location and time.
Cardinal Points:
Cardinal points are the four main directions on a compass: North, East, South, and West.
Magnetic North:
Magnetic North is the direction a magnetic compass needle points, which aligns with the Earth’s magnetic field.
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.)