Physics - Current Electricity Question with Solution | TestHub

Let the direction of electric current in the circuit be $i$ from $A \text{to} B$. Using Kirchhoff's law in clockwise direction, we get

$$\begin{gathered} -\left(i\times 2\right)+10-5-\left(i\times 1\right)-\left(i\times 7\right)=0 \\ \Rightarrow 5=10i \\ \Rightarrow i=\frac{5}{10}=0.5 \mathrm{A} \end{gathered}$$