MDCAT Physics MCQ #791

A solenoid has 1000 turns, radius 2 cm, and length 20 cm. What is its self-inductance? (μ₀ = 4π × 10⁻⁷ T·m/A)

MDCAT Physics MCQ #791

  1. Question 1

    Q1. A solenoid has 1000 turns, radius 2 cm, and length 20 cm. What is its self-inductance? (μ₀ = 4π × 10⁻⁷ T·m/A)

    • A) 3.95 × 10⁻⁴ H
    • B) 1.58 × 10⁻³ H
    • C) 7.85 × 10⁻⁵ H
    • D) 2.51 × 10⁻³ H

    Answer: 3.95 × 10⁻⁴ H

    Explanation: Use L = μ₀N²A/l. Option B incorrectly squares radius instead of area.