WBJEE · Physics · Current Electricity
In the electrical circuit shown in the figure, the current through the \(4 \Omega\) resistor is 
- A \(1 \mathrm{A}\)
- B \(0.5 \mathrm{A}\)
- C \(0.25 \mathrm{A}\)
- D \(0.1 \mathrm{A}\)
Answer & Solution
Correct Answer
(B) \(0.5 \mathrm{A}\)
Step-by-step Solution
Detailed explanation
The current through the various branches of the circuit will be shown as According to Kirchhoff's second law in closed circuit \(B C D E B\) \[ \begin{array}{r} 2 I_{1}+4 l_{1}+2 l_{1}-8\left(1-l_{1}\right)=0 \\ \Rightarrow \quad 16 l_{1}-81=0 \end{array} \]…
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