PH-1966

Electrical power and energy

Physics · Secondary 4 · Hard · Electrical power and energy

A 60 W lamp is designed to operate at 12 V. It is connected to a 12 V supply and switched on. How much electrical energy does it use in 5.0 minutes?

A

3.0\times10^2\,\text{J}

3.0\times10^3\,\text{J}

1.8\times10^4\,\text{J}

3.6\times10^4\,\text{J}

3.0×10^2 J
3.0×10^3 J
1.8×10^4 J
3.6×10^4 J

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