Phys A2- Capacitors Watch

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Mimo
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#1
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#1
This was on the Edexcel Practical paper, and I can't work it out, please help.

Why is important to connect the capacitor the right way round?

...should it be something to do with safety?
Thank you!
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F1 fanatic
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(Original post by Mimo)
This was on the Edexcel Practical paper, and I can't work it out, please help.

Why is important to connect the capacitor the right way round?

...should it be something to do with safety?
Thank you!
I think its to do with the way its made. If you had it the other way round the electric field would go in the opposite direction & it would break it. I dont think it would blow up or anything like that... you'd just break a perfectly good capacitor.
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Imaad
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it will stop workin if u put it the rong way round. i thinki t blows something up inside.
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Mimo
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(Original post by Imaad)
i thinki t blows something up inside.
:rofl:
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Mimo
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[QUOTE=F1 fanatic]I dont think it would blow up or anything like that... QUOTE]
:heeeellll :stickyman

Thanks for the help!
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john !!
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I don't know the answer to this either.
bump!
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habosh
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#7
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because the chemical reaction would reverse on the capacitor and the deelectric will break up,it's because it's an electrolytic capacitor there are capacitors which it doesn't matter in what polarity you will connect them
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F1 fanatic
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(Original post by habosh)
because the chemical reaction would reverse on the capacitor and the deelectric will break up,it's because it's an electrolytic capacitor there are capacitors which it doesn't matter in what polarity you will connect them
yeah - thats what I was trying to say... but very badly. A capacitor of that type is made of paper coated in a thin foil and soaked in electrolytic gel. Its then rolled up very small and rammed in a metal container. If you run it backwards you run the charge through the gel rather than the foil I think and the thing evaporates itself and basically goes kaput. :rolleyes: Di-electrics - gotta love em :cool: :p:
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habosh
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(Original post by F1 fanatic)
yeah - thats what I was trying to say... but very badly. A capacitor of that type is made of paper coated in a thin foil and soaked in electrolytic gel. Its then rolled up very small and rammed in a metal container. If you run it backwards you run the charge through the gel rather than the foil I think and the thing evaporates itself and basically goes kaput. :rolleyes: Di-electrics - gotta love em :cool: :p:
electrolytes are so annoying I love the simple connect me the way you want caps :p:
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nageen
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could u plz email me the practical past papers for physics.i have no papers at all.
plz either type them and then send me.
i need some papers to get an idea how the look
plzzzzzzzzzzzzzzzzzzzzzzzzzz
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