Physics
Grade-9
Easy
Question
The table below has three different hairdryer models. Which is the least energy-efficient model?
- Model A
- Model B
- Model C
- All are same
Hint:
Model A
The correct answer is: Model A
Model A of hairdryer is the only one which consumes the most electricity i.e., 520 kWh but uses only 450 kWh of the energy while the rest of the energy is wasted unlike the other models which wastes less electricity.
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