JEE Mains · Physics · STD 12 - 3. current electricity
The current \(I_{1}\) (in \(A\)) flowing through \(1\; \Omega\) resistor in the following circuit is:
- A \(0.5\)
- B \(0.2\)
- C \(0.25\)
- D \(0.4\)
Answer & Solution
Correct Answer
(B) \(0.2\)
Step-by-step Solution
Detailed explanation
Equivalent resistance of upper branch of circuit \(\mathrm{R}=2.5 \Omega\) Voltage across upper branch \(=1 \mathrm{V}\) \(\Rightarrow \quad i=\frac{1}{2.5}=.4 \mathrm{A}\) \(\Rightarrow \mathrm{I}_{1}=0.2 \mathrm{A}\)
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