Self inductance of solenoid is (a) directly proportional to current flowing through the coil. (b) directly proportional to the length. (c) directly proportional to its area of cross-section. (d) inversely proportional to the area of cross-section.

Answer: (c). L = (μ₀ N² A)/(l): independent of current, inversely proportional to l. It is directly proportional to the area A. So the answer is (c) directly proportional to its area of cross-section.

Self inductance of solenoid is | MHT CET 2023 (9 May, Shift 1)

Q57MHT CET 2023 · 9 MAY · SHIFT 1Easy

Self-Inductance & Energy

Self inductance of solenoid is

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Answer: (c)

$L = \dfrac{\mu_0 N^2 A}{l}$ : independent of current, inversely proportional to $l$ .
It is directly proportional to the area $A$ .
So the answer is (c) directly proportional to its area of cross-section.

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