| Date | November 2013 | Marks available | 1 | Reference code | 13N.1.HL.TZ0.23 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 23 | Adapted from | N/A |
Question
The graph shows the variation with distance r of the electric potential V for a positively charged hollow sphere of radius R.
Which graph shows how the magnitude of the electric field E varies with r?
Markscheme
A
Examiners report
The question can either by approached from taking the gradient of the electric potential graph to provide the electric field strength, or by knowing that the electric field inside a charged sphere is equal to zero, they would be able to opt for the correct response.
Syllabus sections
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