| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.HL.TZ2.24 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 24 | Adapted from | N/A |
Question
The rms current rating of an electric heater is 4A. What direct current would produce the same power dissipation in the electric heater?
A. \(\frac{4}{{\sqrt 2 }}{\rm{A}}\)
B. 4A
C. \(4\sqrt 2 {\rm{A}}\)
D. 8A
Markscheme
B
Examiners report
Syllabus sections
Additional higher level (AHL) » Topic 11: Electromagnetic induction » 11.2 – Power generation and transmission
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