The length of a wire required to manufacture a solenoid of length l and self induction L…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
The length of a wire required to manufacture a solenoid of length l and self induction L is (cross-sectional area is negligibile)
- \(\sqrt{\frac{2 \pi \mathrm{~L} \ell}{\mu_{0}}}\)
- \(\sqrt{\frac{\mu_{0} \mathrm{~L} \ell}{4 \pi}}\)
- \(\sqrt{\frac{4 \pi \mathrm{~L} \ell}{\mu_{0}}}\)
- \(\sqrt{\frac{\mu_{0} \mathrm{~L} \ell}{2 \pi}}\)
Answer
(C) 4 ~L _ 0
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