Question 400: Current Electricity

Question

In the following circuit, the battery has an emf of $$2 \mathrm{~V}$$ and an internal resistance of $$\frac{2}{3} \Omega$$. The power consumption in the entire circuit is _________ W.

Accepted Answer

$$\begin{aligned}
& \mathrm{R}_{	ext {eq }}=\frac{4}{3} \Omega \
& 	herefore \mathrm{P}=\frac{\mathrm{V}^2}{\mathrm{R}_{	ext {eq }}}=\frac{4}{4 / 3}=3 \mathrm{~W}
\end{aligned}$$

Current Electricity

In the following circuit, the battery has an emf of $2 \mathrm{~V} and an internal resistance of \frac{2}{3} \Omega$. The power consumption in the entire circuit is _________ W.

Choose the correct answer: