batteries wired series
4 batteries of 2.0v are connecting in series with a lamp of 12 omh if the current resulting is 0.62A?
what will be the internal resistance of each batteries, supposedly they are all identical and demoting the resistance in the wire connections?
The total series resistance must be the R given by R = V/I
This is 12.9 ohms.
This means that there is 0.9 ohms distributed between the 4 batteries. If we assume that the distribution is even then the internal resistance of one battery is 0.225 ohms
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