# Electrical circuit question.

**URL:** <https://boards.straightdope.com/t/electrical-circuit-question/669078>\
**Category:** Factual Questions\
**Created:** [September 17, 2013, 6:53pm UTC](https://boards.straightdope.com/t/electrical-circuit-question/669078 "2013-09-17T18:53:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kanicbird](https://avatars.discourse-cdn.com/v4/letter/k/5f8ce5/32.png) [@kanicbird](https://boards.straightdope.com/u/kanicbird)\
**Post date:** [September 17, 2013, 6:53pm UTC](https://boards.straightdope.com/t/electrical-circuit-question/669078/1 "2013-09-17T18:53:16Z")

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Is their a simple way (simple circuit) to smooth out electrical voltage fluctuation to get a more average voltage so it can be read with a voltmeter without jumping all over the place? I’m talking about in the range of about 0.5-1vDC.

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**Author:** ![naita](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/naita/32/5862_2.png) [@naita](https://boards.straightdope.com/u/naita)\
**Post date:** [September 17, 2013, 7:07pm UTC](https://boards.straightdope.com/t/electrical-circuit-question/669078/2 "2013-09-17T19:07:16Z")

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Yes, with a capacitor. But to know which one to use to get a meaningful result afterwards you’d need electrical knowledge on a level where you’d know that you needed a capacitor.