' l ' = V' l U E content.ca-central>1.content-service.brightspace.com 0' r11 l 335 a httpsdlcomenma-cemral.contentservi... Task 4: Electricity and Magnetism Knowledge Choose four of the following ve questions to answer. 1. Explain the difference between AC and DC current. 2. List two types of elements that would cause an electric potential drop in a circuit and one type of element that would cause an electric potential gain in a circuit. 3. Which type of circuits contains junctions? Explain what happens to the current at a junction. 4 List one similarity and one difference of electric and magnetic elds. 5. List one part of a DC motor that you could change that would reverse the direction of rotation of the motor