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The capacity of fixed safety capacitors below 10pF is too small, so if using a multimeter to measure it, you can only qualitatively check whether it has leakage, internal short circuit or breakdown. If the measured resistance value (the pointer swings to the right) is zero, it means that the capacitor leakage is damaged or internal breakdown. The resistance at this time is the forward leakage resistance of the electrolytic capacitor, and this value is slightly larger than the reverse leakage resistance. If there is no charging in the forward and reverse directions, that is, the hands are not moving.
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