7. Calculate and illustrate the electric field strength at a distance of 8.25 m from a +6.50 pC charged particle. Draw an arrow to indicate the direction of the field at location P in the diagram below. (2 marks) +6.50 DC P OPhysics 30: Assignment 4 7 8. A particle has a charge of -5.00 uC. At a point near this particle, the electric field strength is 7.20 x 107 M/C. Determine the distance from this point to the charged particle. (2 marks) Point P is collinear with a +2.80 pC charged particle and a -8.50 pC charged particle as shown in the diagram below. Point P is 10 cm to the left of the positive charge and 20 cm to the left of the negative charge. What is the electric field at point P? (4 marks) v @@ Point P 10cm +2.80 pC -8.50 pC Physics 30: Assignment 4 8 10. The diagram below shows two charged spheres arranged to the left of a point in space labelled P. Use the information on the diagram to calculate the magnitude and direction of the net electric field at point P. (4 marks) h"-.. 24.5cm 22.0 >~ _ 20\\ -~ =" M5em p