A Battery Has an Emf $\varepsilon = 12 \mathrm {~V}$ And an Internal Resistance

question 186

Multiple Choice

A battery has an emf $\varepsilon = 12 \mathrm {~V}$ and an internal resistance $r = 2.0 \Omega$ , as shown in the figure. When a current of $6.0 \mathrm {~A}$ is drawn from the battery, the terminal voltage of the battery $V _ { a b }$ is closest to

• A) \(2.0 \mathrm {~V}\).
• B) \(10 \mathrm {~V}\).
• C) \(0 \mathrm {~V}\).
• D) \(+ 12 \mathrm {~V}\).
• E) \(+ 24 \mathrm {~V}\).

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