WBJEE · Physics · Current Electricity
What current will flow through the \(2 \mathrm{k} \Omega\) resistor in the circuit shown in the figure? 
- A \(3 \mathrm{mA}\)
- B \(6 \mathrm{mA}\)
- C \(12 \mathrm{mA}\)
- D \(36 \mathrm{mA}\)
Answer & Solution
Correct Answer
(A) \(3 \mathrm{mA}\)
Step-by-step Solution
Detailed explanation
From KCL we have \(i=\frac{72}{8 \times 10^{3}}=9 \times 10^{-3} \mathrm{A}\) \[ \begin{aligned} i \times 6 &=(9-i) \times 3 \\ i &=3 \mathrm{mA} \end{aligned} \]
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