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 06-28-2008 #1 (permalink) Rilienthal Games   Join Date: Jun 2008 Location: Neo OZ Posts: 4,763 iTrader: (4) IGN: Natsume Help with Physics HW If a current of 2A flows through a lamp filament, find the number of coulombs that flow through the filament each minutes? Can anyone help me with question and explain it
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 06-28-2008 #2 (permalink) ggFTW Addict Games   Join Date: Jun 2008 Location: drifting from place to place Posts: 199 iTrader: (0) IGN: Gedachtnis An ampere is one coulomb of charge going past a given point in the duration of one second. I = Q/t Q = It where Q is your coulomb of charge, I is your current and t is time in seconds. Since we have 2 Amperes, thats 2 coulombs of charge going through your lamp filament per second. The question asks for coulombs per minute so you just convert 2coulombs/sec to number of coulombs/1minute: (2coulombs/1sec) * (60sec/1minute) = 120 coulombs per minute __________________ Last edited by Pandaccoon; 06-28-2008 at 11:32 PM.
 06-28-2008 #3 (permalink) Rilienthal Games   Join Date: Jun 2008 Location: Neo OZ Posts: 4,763 iTrader: (4) IGN: Natsume ok i got it.. Thx a lot.

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