SOLVE THIS!!!!!!!

Les Jones said:

Hi Spec,
Your equation gives the correct value for the internal resistance of the cell .
ri = ( [I1*1]-[I2*4])/ (I2-I1). gives the correct answer.
= (1.2 * 1)- (0.4 *4)/(0.4-1.2)
= 1.2-1.6/-0.8
= -0.4/-0.8
= 0.5

Les.

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Ratchit said:

If you are willing to accept negative resistance, then your currents can be anything you want. Otherwise, you cannot expect to have more current after increasing the resistance.

Ratch

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JoeJester said:

Well it works out for a wet cell that is almost discharged.

You can use 900 ma and 300 ma where the battery would be common to some dry cell batteries.

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