JohnJacobJingle9731 JohnJacobJingle9731

22-09-2019
Physics

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A battery having an emf of 9.76 V delivers 111 mA when connected to a 60.5 Ω load. Determine the internal resistance of the battery. ______Ω

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22-09-2019

Answer:

[tex]r = 27.4 \: ohm[/tex]

Explanation:

Using

E = I(R + r)

[tex]9.76 = 111 \times {10}^{ - 3} (60.5 + r) \\ 87.928 = 60.5 + r \\ r = 27.4 \: ohm[/tex]

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