PH-646
Electrical power and energy
Physics · Secondary 3 · Medium · Electrical power and energy
A 60 W lamp is switched on for 5.0 hours each day. The mains voltage is 240 V.
How much electrical energy does the lamp use in one day?
How much electrical energy does the lamp use in one day?
- 1.08 × 10⁴ J
- 1.08 × 10⁵ J
- 1.08 × 10⁶ J
- 3.60 × 10⁶ J
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