A battery has an emf $\varepsilon = 43.0 \mathrm {~V}$ and an internal resistance $r = 8.0 \Omega$, as shown in the figure. When the terminal voltage $V _ { a b }$ is equal to $34.0 \mathrm {~V}$, the current through the battery, including its direction, is closest to

A) $4.2 \mathrm {~A}$, from $b$ to $a$.
B) $1.1 \mathrm {~A}$, from $b$ to $a$.
C) $5.4 \mathrm {~A}$, from $b$ to $a$.
D) $1.1 \mathrm {~A}$, from $a$ to $b$.
E) $4.2 \mathrm {~A}$, from $a$ to $b$.

Question

A battery has an emf $\varepsilon = 43.0 \mathrm {~V}$ and an internal resistance $r = 8.0 \Omega$, as shown in the figure. When the terminal voltage $V _ { a b }$ is equal to $34.0 \mathrm {~V}$, the current through the battery, including its direction, is closest to

A) $4.2 \mathrm {~A}$, from $b$ to $a$. 
B) $1.1 \mathrm {~A}$, from $b$ to $a$. 
C) $5.4 \mathrm {~A}$, from $b$ to $a$. 
D) $1.1 \mathrm {~A}$, from $a$ to $b$. 
E) $4.2 \mathrm {~A}$, from $a$ to $b$.

Quizplus · Accepted Answer

The Answer of A battery has an emf $\varepsilon = 43.0 \mathrm {~V}$ and an internal resistance $r = 8.0 \Omega$, as shown in the figure. When the terminal voltage $V _ { a b }$ is equal to $34.0 \mathrm {~V}$, the current through the battery, including its direction, is closest to

A) $4.2 \mathrm {~A}$, from $b$ to $a$. 
B) $1.1 \mathrm {~A}$, from $b$ to $a$. 
C) $5.4 \mathrm {~A}$, from $b$ to $a$. 
D) $1.1 \mathrm {~A}$, from $a$ to $b$. 
E) $4.2 \mathrm {~A}$, from $a$ to $b$.

A Battery Has an Emf ε=43.0 V\varepsilon = 43.0 \mathrm {~V}ε=43.0 V And an Internal Resistance

A Battery Has an Emf $\varepsilon = 43.0 \mathrm {~V}$ And an Internal Resistance