Battery Internal Resistance#

A battery with an internal resistance of \(r\) and an emf of 6.75\(\textrm{ V}\) is connected to a load resistor \(R =\) 4\(r\) and current \(I_0\) flows. As the battery ages, the internal resistance increases by a factor of 2.

Part 1#

Find the ratio \(I\_\mathrm{f}/I_0\), where \(I\_\mathrm{f}\) is the final current after the battery has aged.

Answer Section#

Please enter a rational number.


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\(I\_\mathrm{f}/I_0 =\)


Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
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