0 Electric Field and Force: A ring-shaped conductor with radius cm has a total positive charge nC uniformh,l distributed around it. The center of the ring is at the origin of coordinates Q. MethodsiEquations}40% I Variables 30% I Answer 30% I [a] What is the electric field at point P, which is on the -axis at cm? ../' rift: MethodsiEquations}40% I Variables 30% I Answer 30% I [b] A point charge is placed at P. What are the magnitude and direction of the force exerted on the charge ? Methods {Equations} 40% Variables 30% Answer 30% {a} What are the magnitude and direction of the force exerted on the ring by charge. 0 Electric Force Methods {Equations} 40% Variables 30% Answer 30% Three point charges are located at the corners of an equilateral triangle as shown in Figure. Find the 111agnitude and direction of the net electric force on the 4.00 \"C charge. Please label each variable you use. J 7.0:) Jm: - Electric Force and Guass's Law Methods {Equations} 40% Variables 30% Answer 30% Two very long uniform lines of charge are parallel and are separated by . Each line of charge has charge per unit length . 1What magnitude of force does one line of charge exe1t on a 1n section of the other line of charge