Joke Collection Website - Mood Talk - One day, the school classroom was short-circuited and it was dark. After class, Xiao Ming wants to see if the switch has tripped.
One day, the school classroom was short-circuited and it was dark. After class, Xiao Ming wants to see if the switch has tripped.
The upper two points are the power supply, and the lower two points are the terminals of the fuse. The short circuit fault is a red-green circuit, and only the test lamp is connected in the circuit. After normal, it is a circuit composed of green and black. The test lamp and other bulbs are divided in series, so the test lamp will be dimmed. I used my computer to draw pictures, so ... it's hard! I hope I can help you.
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