PH-1884

Electrical power and energy

Physics · Secondary 4 · Medium · Electrical power and energy

1. $4.5\times10^6\,\text{J}$
2. $7.5\times10^4\,\text{J}$
3. $1.5\times10^5\,\text{J}$
4. $4.5\times10^4\,\text{J}$

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