How many potato batteries?

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How many potato batteries?

How many potato batteries would be needed to power a circuit which requires 6V but a relatively small current?

random I know...

2007-02-11 05:39:56 · 3 answers · asked by dancer131 1 in Science & Mathematics ➔ Physics

3 answers

The voltage produced depends on the metals used. The open-circuit voltage of a copper-zinc battery is 1.1 volts. So you will need six potatoes to produce six volts. Drawing current from the battery causes its output voltage to drop. More metal in the potatoes, and/or more potatoes wired in parallel will give you more current and less voltage drop.

2007-02-11 07:10:35 · answer #1 · answered by injanier 7 · 0⤊ 0⤋

2007-02-11 13:44:30 · answer #2 · answered by isabell f 1 · 0⤊ 0⤋

i'd say approx. 4

2007-02-11 13:51:36 · answer #3 · answered by avant1991 3 · 0⤊ 0⤋