PH-2031
Electrical power and energy
Physics · Secondary 4 · Hard · Electrical power and energy
A phone charger is labelled "". It is used continuously for 3.0 hours.
Assuming it operates at its rated values, how much electrical energy does it draw from the mains?
Assuming it operates at its rated values, how much electrical energy does it draw from the mains?
- 6.21 × 10^4 J
- 6.21 × 10^5 J
- 2.07 × 10^6 J
- 4.97 × 10^6 J
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