PH-670
Electrical power and energy
Physics · Secondary 3 · Hard · Electrical power and energy
A 60 W lamp is switched on for 3.0 hours. The mains voltage is 240 V.
How much electrical energy does the lamp use?
How much electrical energy does the lamp use?
- J
- J
- J
- J
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.