The inductance of a coil is proportional to (a) its length (b) the number of turns (c) the resistance of coil (d) the square of the number of turns

Answer: (d). For a coil (solenoid) L = (μ₀ N² A)/(l). So L ∝ N²; it is inversely proportional to length and does not depend on resistance. So the answer is (d) the square of the number of turns.

The inductance of a coil is proportional to | MHT CET 2026 (15 May, Shift 2)

Q5MHT CET 2026 · 15 MAY · SHIFT 2Easy

Self-Inductance & Energy

The inductance of a coil is proportional to

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Answer: (d)

For a coil (solenoid) $L = \dfrac{\mu_0 N^2 A}{l}$ .
So $L \propto N^2$ ; it is inversely proportional to length and does not depend on resistance.
So the answer is (d) the square of the number of turns.

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