The terminal voltage of the battery, whose emf is 10 V and internal resistance $1 \Omega$, when connected…

The terminal voltage of the battery, whose emf is 10 V and internal resistance $1 \Omega$, when connected through an external resistance of $4 \Omega$ as shown in the figure is:
  1. 6V
  2. 8V
  3. 10V
  4. 4V

Solution


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

Asked in: NEET 2024

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