Physics · Oct / Nov 2020 · Paper 11 · Question 19
5054Efficiency
Data for three types of electricity generator are shown. | | input energy / MJ | wasted energy / MJ | |---|---|---| | oil | 500 | 300 | | nuclear | 200 | 160 | | hydroelectric | 10 | 1.0 | Which is the least efficient generator and which is the most efficient?
- Ahydroelectric; nuclear
- Bhydroelectric; oil
- Cnuclear; hydroelectric
- Doil; hydroelectric
As printed in the paper
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Correct answer: C. nuclear; hydroelectric
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