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BITSAT2010PhysicsElectromagnetic InductionActual

Two solenoids of same cross-sectional area have their lengths and number of turns in ratio of 1: 2 . The ratio of self-inductance of two solenoids is

Options

  1. A1: 1
  2. B1: 2
  3. C2: 1
  4. D1: 4

Correct answer

B. 1: 2

Step-by-step solution

From L= ₀ N² A 1 N² 1 we get, L ₁ ~L ₂ = (1 / 2)² 1 / 2 = 1 2

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