Connecting lamps and electrical safety
Answers are for parents and teachers.
1
3 lamps are connected in parallel, each drawing 200 mA. What is the total current in mA?
600
2
A socket is 16 A, 220 V. If devices of 1500 W, 1000 W and 800 W are plugged in, what is the remaining margin up to the allowed 3520 W?
220
3
Write 5 electrical safety rules for your home and read them to your family.
For example: no touching with wet hands, unplug by the plug, nothing in sockets, no overloading, show broken devices to adults.
4
Why does a battery drain faster with parallel lamps?
The total current is the sum of the branch currents, so the source supplies more current.