Q 1 Three charged particles are separated from each other by a distance of 5cm i. e. they are positioned at the corners of a triangle. The charges are (0.5C), (0.4C) and (-0.6C). Draw the electric fiel ld lines surrounding the charges. Q 2 A long heavy rope is hung from the ceiling by one end and pulses are sent up the rope from its lower end. Why does the speed of a pulse change as it goes up the rope? Does the speed increase or decrease? Explain your answer.