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I'm new to this site. I have a small experiment. I did trying to make a circuit from a schema that needs 10uF Polarised Capacitor in the schema. I use Qucs (Quite Universal Circuit Simulator) qucs.sourceforge.net as the tool. But I couldn't find the Polarised Capacitor there. Does anyone know where is it ?, xD. Hehe sorry I barely learn about E-Engineering. Thanks before enter image description here

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    \$\begingroup\$ Just use a non-polarised one. In most cases it will make no difference at all to the simulation. \$\endgroup\$
    – Tom Carpenter
    Dec 12, 2015 at 1:35
  • \$\begingroup\$ @TomCarpenter oh really ?, I'll try. Thanks tom \$\endgroup\$
    – Mike
    Dec 12, 2015 at 1:37

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To transform the component symbol in a polarized capacitor, once you put it in the scheme:

enter image description here

you double-click to open the properties window.

enter image description here

There are three options: C to the value of capacitor, V for initial voltage and Symbol to select between neutral and polar.
The polar version:

enter image description here

Note: version 0.0.18 of Qucs

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  • \$\begingroup\$ Surprising, I didn't know that. Nice answer!! Thanks Martin \$\endgroup\$
    – Mike
    Dec 12, 2015 at 2:04

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