The impedence of a circuit, when a resistance R and an inductor of inductance L are…
Physics · NEET · NTA Exams — Electromagnetic Induction and Alternating Currents
The impedence of a circuit, when a resistance R and an inductor of inductance L are connected in series to an AC circuit of frequency f, is:
- \(\sqrt{R+2 \pi^{2} f^{2} L^{2}}\)
- \(\sqrt{R+4 \pi^{2} f^{2} L^{2}}\)
- \(\sqrt{R^{2}+4 \pi^{2} f^{2} L^{2}}\)
- \(\sqrt{R^{2}+2 \pi^{2} f^{2} L^{2}}\)
Answer
(C) R^ 2 +4 ^ 2 f^ 2 L^ 2
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