JEE Mains · Physics · STD 12 - 3. current electricity
In the given circuit, the current in resistance \(\mathrm{R}_3 \) is _______.
- A \(1 \mathrm{~A}\)
- B \(1.5 \mathrm{~A}\)
- C \(2 \mathrm{~A}\)
- D \(2.5 \mathrm{~A}\)
Answer & Solution
Correct Answer
(A) \(1 \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{R}_{\mathrm{eq}}=2 \Omega+2 \Omega+1 \Omega=5 \Omega\) \(\mathrm{i}=\frac{\mathrm{V}}{\mathrm{R}_{\mathrm{eq}}}=\frac{10}{5}=2 \mathrm{~A}\) Current in resistance \(\mathrm{R}_3=2 \times\left(\frac{4}{4+4}\right)\) \( =2 \times \frac{4}{8} \) \( =1 \mathrm{~A}\)
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