The test charge ( blue color ) moves under the effect of the field of three immobile charges, that are situated in points A, B, C. the trajectory is highlighted as it moves.
Question 1: Using the diagram, can you find whether charges
A, B, C are positive or negative?
Question 2: Can you explain the direction and sign of the force's vector at the end of the motion? Can you predict the following steps of the motion? (confirm your answer with the velocity's vector)
Exercise: Can you calculate the rate of every charge? Given that q=10-9C(hint: use the "<step" and "step>" buttons and observe the motion in detail)