Capacitors are widely used in household appliances. I believe that many of my friends have encountered the problem of home appliances malfunctioning. For example, the electric fan at home suddenly fails and does not turn. However, after disassembling the casing, it is impossible to confirm whether the capacitor
is damaged or the motor is broken. For the test, I want to connect the two ends of the capacitor directly, but is it safe to do so? First of all, a capacitor is a 'capacitor' that can store electricity. In this respect, it is similar to a rechargeable battery. If it is a capacitor with a small capacity (small in size), it may be fine if the positive and negative poles are connected together; if it is a capacitor with a large capacity (also large in volume), the positive and negative poles are connected together, and they may immediately 'peng' Exploded. However, capacitors can be discharged. Use a screwdriver or a wire to connect one of the capacitor poles to the ground and discharge. Large-capacity capacitors can also be discharged by connecting a bulb or electric soldering iron. In fact, small-capacity capacitors can also be quickly touched with a wire. The positive and negative poles are discharged. After the power is discharged, it is okay to connect the positive and negative poles of the capacitor directly without powering on. In short, security is important, and you can't mess around.
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