Draw a rough figure and label suitably in each of the following cases:
(a) Point P lies on AB.
(b) XY s ruu and PQ s ruu intersect at M.
(c) Line l contains E and F but not D.
(d) OP s ruu and OQ s ruu meet at O.
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow