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A 2 V cell is connected to a 1 ohm resis...

A 2 V cell is connected to a 1 `ohm` resistance. How many electrons come out of the negative terminal of the cell in 2 minutes?

Text Solution

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Current through the resistance
`I=V/R=2 ` amperes
Number of electrons coming out in
1 second `=2/("electronic charge")=2/(1.6xx10^(19)`
`=1.25xx10^(+19)`
Number of electrons coming out in 2 minutes or 120 s
`=1.25xx10^(19)xx120`
`=1.5xx10^(21)` electrons
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