PH-2016
Electrical power and energy
Physics · Secondary 4 · Medium · Electrical power and energy
A house lighting circuit is supplied at 230 V. The total power of all lamps in the circuit is 460 W when they are all switched on.
What is the current in the live wire supplying the lighting circuit?
What is the current in the live wire supplying the lighting circuit?
- 2.0 A
- 0.50 A
- 4.0 A
- 9.2 A
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