Why isn't my vinegar battery lighting up a light bulb?

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The discussion centers on the challenges of lighting a small bulb using a vinegar battery made with aluminum and copper. The primary issue is that the vinegar battery produces less than one volt, which is insufficient for most bulbs, especially those designed for higher voltages. For optimal results, a bulb intended for a 1.5V flashlight battery is recommended. The wattage of the bulb is not a determining factor since the actual power output depends on the voltage from the vinegar battery, which is likely too low to illuminate the bulb effectively.
es_dee
I tried making a vinegar batter with aluminum and copper today and can't light up a small light bulb but I'm not sure why. Is it because the current is too small or it is because the vinegar has a high internal resistance? any help would be greatly appreciated. thanks!
 
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It depends on the bulb. What is the intended voltage of the bulb? You want a bulb intended for a flashlight that uses 1 battery; that is a 1.5V bulb. Your vinnegar battery produces less than a full volt of potential difference, so even with a low volt bulb, it will glow very dimly.

Note: the indicated power (wattage) of the bulb will not help you since the actual power dissipated by the bulb depends on the voltage of the battery.
 
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