Two coaxial solenoids are made by winding thin insulated wire over a pipe of…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area A = 10 cm2 and length = 20 cm. If one of the solenoids has 300 turns and the other 400 turns, their mutual inductance is (µ0 = 4π × 10–7 TmA–1)
- 2.4 π × 10–5 H
- 4.8 π × 10–4 H
- 4.8 π × 10–5 H
- 2.4 π × 10–4 H
Answer
(D) 2.4 π × 10 –4 H
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