Since the netizen used the silver pen to draw the circuit diagram, the program group prepared the two most common silver pens on the market: the silver gel pen and the silver marker pen. Button batteries and LED lights were also prepared.
First, draw a simple circuit diagram on the black paper with a silver gel pen. The positive and negative poles each pull out a line, put the LED light on, connect the battery, and find that the light is not bright. The circuit diagram is not conductive. The experiment failed. The second test was then carried out with a silver marker and the same circuit diagram was drawn. After the connection, the lamp was still not lit. Experiments have shown that the circuit diagrams drawn by two ordinary silver pens are not conductive. Some netizens said that the brush in the experiment was indeed silver, but it was actually a special silver pen.
Next, according to the netizen, the program group conducted the third experiment, the same circuit diagram, the same LED lights and button batteries, even after the lights are on! Under the same conditions, the circuit diagram of ordinary silver strokes does not respond, and the special silver pen can indeed illuminate the LED lights. Since the LED brightness is too small, experimental upgrade again, the LED lamp into the lamp with a large, and with the corresponding button cell, then bright blue lights, successful experiment.
In fact, this mystery is on a special silver pen. It is called a silver gel pen. It is a needle tube. It is made of conductive silver glue. It is a gel made of silver powder. Silver is very conductive, so use this pen to draw The line can be electrically conductive.
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