PH-1927

Electrical power and energy

Physics · Secondary 4 · Hard · Electrical power and energy

1. $6.48\times10^5\,\text{J}$
2. $7.20\times10^4\,\text{J}$
3. $1.44\times10^6\,\text{J}$
4. $2.50\times10^3\,\text{J}$

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