JEE Mains · Physics · STD 12 - 3. 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 _______ \(W\).
- A \(2\)
- B \(3\)
- C \(4\)
- D \(5\)
Answer & Solution
Correct Answer
(B) \(3\)
Step-by-step Solution
Detailed explanation
\(\mathrm{R}_{\text {eq }}=\frac{4}{3} \Omega\) \(\therefore \mathrm{P}=\frac{\mathrm{V}^2}{\mathrm{R}_{\text {eq }}}=\frac{4}{4 / 3}=3 \mathrm{~W}\)
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