PH-655
Electrical power and energy
Physics · Secondary 3 · Medium · Electrical power and energy
A 60 W lamp is switched on for 30 minutes. How much electrical energy does it use?
- 1.8×10³ J
- 3.6×10⁴ J
- 1.08×10⁵ J
- 6.00×10⁵ J
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.