Question
Electric Fields
I just want to double check my answers. Thanks!
Electric potential is which one of the following? none of the above potential energy per charge force acting upon a charge electric potential energy force per charge external force in moving the charge from one location to another. In this case, the potential energy (increases, decreases) and the electric potential (increases, decreases). more information is needed to answer this question decreases, decreases decreases, increases increases, decreases increases, increases Consider the diagram below which shows an electric field and two points A and B located within the field. A positive test charge is shown at point A. Indicate whether work must be done by an external force on the charge in order to move it from point A to point B. More information is needed to answer this question. Yes, work must be done on the charge to move it from point A to point B. This question is nonsense because neither point A nor point B lie on an actual field line O No, work is not needed to move the charge from point A to point B. Consider the diagram below which shows an electric field and two points A and B located within the field. A positive test charge is shown at point A. The electric potential energy is greatest at point and the electric potential is greatest at point . A,B A,A This question is nonsense because neither point A nor point B lie on an actual field line B, B B, A How much work is required to move a 1 nC charge from an electric potential of 0 V to a potential of 18V? No work is required by an external force because this is the natural movement of the charge. 56 MJ 18 nj 56 mu J 18 J 18GJ
Explanation / Answer
1. potentia per charge [B]
2. increases,increases [E]
3 Yes [B]
4 B,B [D]
5 18*1 nJ = 18nJ [C]
