Example 1 · difficulty 2/5
A long solenoid of length 1.0 m and cross-sectional area 2.0 × 10⁻³ m² has 1000 turns closely wound on it. Its self-inductance is approximately (μ₀ = 4π × 10⁻⁷ T m A⁻¹):
- A. 2.5 × 10⁻⁶ H
- B. 2.5 × 10⁻⁵ H
- C. 2.5 H
- D. 2.5 × 10⁻³ H