NEET · Physics · STD 12 - 3. 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:
- A \(6 \mathrm{~V}\)
- B \(8 \mathrm{~V}\)
- C \(10 \mathrm{~V}\)
- D \(4 \mathrm{~V}\)
Answer & Solution
Correct Answer
(B) \(8 \mathrm{~V}\)
Step-by-step Solution
Detailed explanation
\(\text { Current in circuit } i =\frac{10}{4+1}=2 \mathrm{~A}\) \(\text { Terminal voltage } =E-i R\)
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