Physics-Self & Mutual Induction
NEET Physics Self & Mutual Induction MCQ Question
Type: MCQ-numerical-Hard-Class 12
A solenoid of length 0.5 m and cross-sectional area 0.01 m² is filled with a material of relative permeability 500. If the solenoid has 1000 turns, what is its self-inductance?
A
0.314 H
B
1.57 H
C
0.157 H
D
3.14 H
Correct Answer
Option B
Detailed Explanation
The self-inductance L of a solenoid is given by the formula L = μ₀μr n² A l, where μ₀ = 4π × 10⁻⁷ Tm/A, μr = 500, n = 1000 turns/0.5 m, A = 0.01 m², and l = 0.5 m. Substituting these values gives L = 1.57 H.
Found an issue with this question?