Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@s0 @starkatt @LexYeen uhg okay getting overwhelmed again, let me see if i follow so far

voltage is just how different the positive/negative ends are so it's how violent the reaction is

amperage is the "volume" of electricity that you get by calculating voltage and resistance i guess??? and amp-hours are like "if you discharged this whole battery in one hour, it'd be this many amps"

watts are uhhhhhh

1
always impermanent

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@kat @s0 @LexYeen yeah exactly!

1
Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@starkatt @s0 @LexYeen okay cool everything i find describes amps as like a totally separate thing from voltage so knowing one's a function of the other helps a lot, phew

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Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@starkatt @s0 @LexYeen except amps being a function of volts makes it seem weird that watts are a function of amps and volts

nvm i'm lost again

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the Hearth :ms_agender_flag:

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@kat @starkatt @LexYeen current is a function of voltage *and other things*; 5 V across a 5 Ω resistor gives you 1 A, and consequently 5 W of heat being produced in the resistor, but 5 V across a 10 Ω resistor gives you 0.5 A, and consequently 2.5 W of heat
-F

1
Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@starkatt @s0 @Felthry @LexYeen

following so far, i'm just not really sure what different thing amps and watts are measuring if amps are already a product of voltage/resistance

like i guess by the time you get to watts you've multiplied by voltage twice??? i'm not sure why really

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Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@starkatt @s0 @Felthry @LexYeen like if you lower voltage and resistance together it'd be like going from a pressure washer with a compressor to a garden hose or something

they're both gonna fill up a bucket at the same rate so the amperage is the same

and then... i'm not sure what wattage is equivalent to here, but i guess it's different for each?? or the same???

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the Hearth :ms_agender_flag:
Follow

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@kat @starkatt @LexYeen wattage is power, it's the amount of heat being generated in the resistor
-F

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Robin

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@Felthry @starkatt @LexYeen alright, so how can you make different amounts of heat with different volumes of electricity? like isn't it always going to take the same amperage to do the same thing?? and amperage is already a product of voltage

what's the reason that the same amps/amount of electricity can do different amounts of work depending what voltage was used to create that amperage in the first place

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the Hearth :ms_agender_flag:

re: parts suggestion specifically about batteries re: longish, about batteries and LEDs 

@kat @starkatt @LexYeen this is beyond my current ability to explain, we're very near going to bed. katt might be able to explain it? or know of a resource that does, she's good at knowing of resources for things
-F

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