Question 619: Current Electricity

Question

The terminal voltage of the battery, whose emf is $$10 \mathrm{~V}$$ and internal resistance $$1 \Omega$$, when connected through an external resistance of $$4 \Omega$$ as shown in the figure is:

Accepted Answer

$$
\begin{aligned}
	ext { Current in circuit } i & =\frac{10}{4+1}=2 \mathrm{~A} \
	ext { Terminal voltage } & =E-i R \
& =10-2 	imes 1=8 \mathrm{~V}
\end{aligned}
$$

Answer

4 V

Answer

6 V

Answer

8 V

Answer

10 V

Current Electricity

The terminal voltage of the battery, whose emf is $10 \mathrm{~V} and internal resistance 1 \Omega, when connected through an external resistance of 4 \Omega$ as shown in the figure is:

Choose the correct answer: