Multiple choice general knowledge science & technology

Formula for Self inductance of a solenoid ?

  1. L = ?n2L

  2. L = ?n2LA

  3. L = ?nhG

  4. L = ?n2LA/2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The self-inductance of a solenoid is given by L = μ₀n²LA where μ₀ is permeability, n is turns per unit length, L is length, A is cross-sectional area. Option B shows the correct relationship.

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