1. Passive play refers to activities like playing alone with toys (iii).
2. Active play involves physical activities such as cycling (i).
3. Exploratory play refers to activities like opening up toy car screws (iv).
4. Natural play is playing with dolls or other imaginative play (ii).
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.)