Internal Resistance of a Battery

 

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 Code Number :   5E40.75

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Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

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Condition :   Excellent  
Principle :   Internal resistance of a battery, peak power of battery,
Area of Study :  Electricity & Magnetism  
Equipment :   BK meter, One old and one new six volt battery.

Procedure :   As batteries age, their internal resistance goes up and power output goes down accordingly.  On occasion a battery can be found that shows 6 volts but has no current output due to a very large internal resistance.
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   References

Adam Niculescu, Peter Martin, "Making and Evaluating an Electrical Battery", TPT, Vol. 44, # 6, p. 343, Sept. 2006.

 



Mail Questions and Comments to:  Dale Stille