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Anonymous users2024-01-24A. The two switches are connected in series, and the chandelier shines only when the two switches are closed at the same time, which does not conform to the theme;
B. Two switches are connected in parallel, and each switch can control the chandelier separately, but the two cannot control each other, which does not conform to the topic;
C, S1 and S2 are single-pole double-throw switches, the bulb does not emit light when S1 throws to the right, and the bulb emits light when S1 throws it to the left; When S2 throws to the right, the bulb emits, and when S2 throws to the left, the bulb does not emit light, and any switch can turn the light on and off, which is in line with the topic;
D. When both switches are to the left, there will be a short circuit in the power supply, which does not conform to the principle of safe electricity use and does not conform to the topic
So choose C
L1 is connected to the live wire on the first double control switch, L2L3 is connected to L2L3 on the second double control switch, L1 is connected to a live wire to the lamp, and the neutral wire is directly connected to the lamp. It's actually quite simple!
It's very simple, the head of the bed is connected to the double and one open, and the other three are connected to the three, and there is a manual on the switch.
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3. All of them need to use the midway switch to give you the last wiring diagram.
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