# Ceramic Capacitor vs Electrolytic Capacitor

Discussion in 'General Electronics Discussion' started by JayJoe, Oct 30, 2016.

1. ### JayJoe

12
1
Jul 31, 2015
Hi, I have a question regarding capacitors. It may be just a simple question to you, but not for me (sorry, in advance if this question is too simple until it is bothering you)

I have got 2 joule thief circuits, these two circuits are for the purpose of electrocuting mosquito (a.k.a. mosquito zapper racket?):

1) First circuit - charging a 16V 10000uF ELECTROLYTIC capacitor with 8.4V.

2) Second circuit - charging a 2000V 0.0084uF CERAMIC capacitor with 2000V.

Based on the formula W=(CV^2)/2 , first circuit will dissipates 0.3528J of energy, while second circuit will dissipates 0.0168J of energy. BUT, during short-circuit, the spark produced by second circuit is MUCH larger and louder than the first circuit. I thought first circuit dissipates more energy?

Anyone can explain to me? Thank you.

2. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

25,480
2,828
Jan 21, 2010
The resistance of the larger capacitor probably results in a lower current than that from the higher voltage capacitor.