GKFix MCQ Question

What is the final magnetic flux through the coil after 180° rotation in Example 6.3?

• A. –π × 10⁻⁷ Wb
• B. –2π × 10⁻⁷ Wb
• C. –3π × 10⁻⁷ Wb
• D. –4π × 10⁻⁷ Wb