JEE Mains · Physics · STD 12 -7. Alternating current
In the figure shown, a circuit contains two identical resistors with resistance \(R = 5\,\Omega \) and an inductance with \(L = 2\, mH\). An ideal battery of \(15\, V\) is connected in the circuit. What will be the current through the battery long after the switch is closed?......\(A\)
- A \(5.5\)
- B \(7.5\)
- C \(3\)
- D \(6\)
Answer & Solution
Correct Answer
(D) \(6\)
Step-by-step Solution
Detailed explanation
After long time, inductor will behave like resistance less wire, \(\mathrm{i}=\frac{15}{\mathrm{R}_{\mathrm{m}}}=\frac{15}{(5 / 2)}\) \(=6 \,\mathrm{A}\)
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