When external resistor R is connected to a non-ideal battery of internal resista

Question

When external resistor R is connected to a non-ideal battery of internal resistance r, the current in the circuit is I. When the value of R is reduced by a factor of f = 0.292, the current is increased by a factor of ? = 2.43. Find the ratio of the internal resistance of the battery r to the initial resistance R.

When external resistor R is connected to a non-ideal battery of internal resistance r, the current in the circuit is I When the value of R is reduced by a factor of f = 0.292, the current is increased by a factor of 2.43. Find the ratio of the internal resistance of the battery r to the initial resistance R. Number Incorrect.

Explanation / Answer

(R/0.292 + r)/(R+r) = 2.43

1.43*r = 0.99*R

r/R = 0.692

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