The Working Voltage is the maximum continuous voltage that can be applied to a capacitor without failure during its working life. Generally, the working voltage printed onto the side of a capacitor's body refers to its DC working voltage, (WVDC).
In a DC circuit, when a capacitor is connected to a voltage source, the current will flow for the short time required to charge the capacitor. In this section, we will learn the expression of the AC voltage source applied across a capacitor in detail.
The voltage rating is the maximum voltage that a capacitor is meant to be exposed to and can store. Some say a good engineering practice is to choose a capacitor that has double the voltage rating than the power supply voltage you will use to charge it.
A capacitor may have a 50-volt rating but it will not charge up to 50 volts unless it is fed 50 volts from a DC power source. The voltage rating is only the maximum voltage that a capacitor should be exposed to, not the voltage that the capacitor will charge up to.
When a capacitor is charged by an AC source, the voltage across its plates rises and the charge builds up. However, as the voltage decreases, the charge also decreases.
So if a capacitor is going to be exposed to 25 volts, to be on the safe side, it's best to use a 50 volt-rated capacitor. Also, note that the voltage rating of a capacitor is also referred to at times as the working voltage or maximum working voltage (of the capacitor).
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How Does A Capacitor Work In An AC Circuit? Capacitors become charged to the value of the applied voltage, acting like a temporary storage device and maintaining or holding this charge indefinitely as long as the supply voltage is present during direct current (DC) connection. A charging current will flow into the capacitor opposing any changes ...
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Whereas the current for inductors and voltage for capacitors are limited to what is applied. Share. Cite. Follow edited Aug 8, 2017 at 19:14. Ricardo. 6,204 20 20 gold badges 54 54 silver badges 89 89 bronze badges. answered Jun 8, 2013 at 19:13. user6972 user6972. 1,537 9 9 silver badges 13 13 bronze badges $endgroup$ Add a comment | 1 $begingroup$ You can …
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The capacitor voltage will be equal to the resistor voltage in reverse polarities during the discharge. Together, they will tend to zero. Share. Cite. Follow answered Jun 26, 2014 at 10:51. hkBattousai hkBattousai. 14.2k 35 35 gold badges 117 117 silver badges 201 201 bronze badges $endgroup$ 3 $begingroup$ Wonderful answer, though i just have 1 more question …
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