I realize that a double A has 1.5 Volts, but taking everything (including mAH of each) into consideration, I would like to know which would shine brightest and which would last longest.
2007-10-21 14:09:26 · 5 answers · asked by peachcobbler 3 in Science & Mathematics ➔ Physics
since a flash lite bulb takes very little power which
both battery types can supply then the brightness depends on the amount of voltage not the current.
the light if rated 3 volts will be brighter at 4 volts and will increase in brightness as the voltage increases.
the life will depend on the voltage as more voltage will reduce the life in proportion.
9 volt will burn a 3 volt bulb instantly like a flash bulb going on.
2007-10-21 14:25:34 · answer #1 · answered by doug_servicetek 3 · 2⤊ 0⤋
one 9 volt
2007-10-21 14:17:36 · answer #2 · answered by low_hd_rider 6 · 0⤊ 0⤋
Initially the 9v battery will produce more light, but the 2 AA batteries will last longer.
2007-10-21 14:17:13 · answer #3 · answered by gp4rts 7 · 0⤊ 0⤋
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2016-07-11 07:31:01 · answer #4 · answered by ? 3 · 0⤊ 0⤋
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2016-11-09 03:51:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋