c) Neutrons are, as the name suggests, neutral objects. However, in the presence of a strong electric field, it is observed that they gain a slightly more positive side and a slightly more negative side. Which of the following is the most likely explanation? 1. Neutrons are made up of charged subatomic particles, with an equal amount of positive and negative charge. ii. Neutrons are made up of charged subatomic particles, with more positive charge than negative charge. lit. Very strong electric fields push both positive charges and neutral charges. iv. Neutrons are unaffected by the electromagnetic force. d) When considering electric fields, and especially electric field line diagrams, we often think in terms of using positive test charges, rather than negative. Why is that the case? What changes if we consider a negative test charge instead? e) When caleulating the electric field due to a continuous charge distribution, it is helpful for us to imagine dividing the distribution into smaller pieces that we do know the field of then integrating over a spatial variable. If you were trying to calculate the electric field aboe a cylinder of constant charge, how could you divide it (draw a diagram)? What variable would you integrate over? Don't do any actual math, just describe it. Hint: you know the electric field from a thin disk of charge. pis constant