| Date | November 2009 | Marks available | 1 | Reference code | 09N.1.HL.TZ0.26 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 26 | Adapted from | N/A |
Question
Raoul suggests that power losses in a transformer may be reduced by the following.
I. Constructing the core from a solid block of steel.
II. Using large diameter wire in the coils.
III. Using wire of low resistivity.
Which of the above suggestions would reduce power loss?
A. I only
B. II only
C. II and III only
D. I, II and III
Markscheme
C
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 11: Electromagnetic induction » 11.2 – Power generation and transmission
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