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A 12 volt battery in a motor vehicle is capable of supplying the starter motor with 150 A. It is noticed that the terminal voltage of the battery drops to 10 V when the engine is cranked over with the starter motor. Determine the internal resistance of the 12 volt battery.

Respuesta :

Answer:[tex]0.0133 \Omega [/tex]

Explanation:

Given

Voltage=12 V

Current(I)=150 A

[tex]V_{terminal}=10 V[/tex]

[tex]r_{internal}=\frac{\Delta V}{I}[/tex]

[tex]r_{internal}=\frac{12-10}{150}[/tex]

[tex]r_{internal}=\frac{2}{150}=0.0133 \Omega [/tex]

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