| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.HL.TZ1.8 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 8 | Adapted from | N/A |
Question
The two graphs below represent the variation with distance, d, for d=r to d=2r of the electric field and the electric potential around an isolated point charge.
The work done by an external force in moving a test charge +q from d=2r to d=r is equal to q multiplied by the
A. shaded area under graph 1.
B. shaded area under graph 2.
C. average value of the electric field.
D. average value of the electric potential.
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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