Question 1 (1 point) Which fact is true about an electric field? Q It is always created by a single point charge. 0 It can be represented as a collection of vectors at all points in space. 0 It exerts a force on any object with mass. O All of these. Question 2 (1 point) The electric potential due to a unit charge q at a distance ris V. What is the potential due to a charge of 4a at a distance of 2r? Question 3 (3 points) A point charge of 10.0 pC is located on the positive x-axis 4.00 m from the origin. Another point charge of 10.0 ,HC is located on the positive y-axis 3.00 m from the origin. What is the net electric eld due to the charges at the origin? Provide your numerical results within the text box below and upload all of your problem solutions as PDF file