How To Tell Polarity Of Electrolytic Capacitor. How to determine positive and negative pins on polarized capacitorsWLU PC221NOTE. Traditionally this mark designates the - end on an aluminum electrolytic capacitor which are usually shaped like tin cans.

And there you go everything you need to know about capacity polarity and electrolytic capacitors to get all charged up for your next electronics project. Sometimes you can look to the length of the leads as an indication of polarity. The best part here is they can function as a secondary.
Answer 1 of 2.
One of the conclusions is closer to where it is located is positive. One electrode has a positive charge while the other electrode has a positive charge. Introduction to Electrolytic Capacitor Electrolytic capacitor is named so because the dielectric which is used in it is an electro chemically treated oxide form. On this pdf the ground is connected to the pin of the capacitor closest shaded half of the capacitor.

