Physics · JEE | Electromagnetic Waves

Based on the parallel plate capacitor setup with surfaces as shown in the text, when Ampere's circuital law is applied to a pot-shaped surface (Fig. 8.1b) or a tiffin-box surface (Fig. 8.1c), what is the value of the line integral \( \oint \mathbf{B}\cdot d\mathbf{l} \) along the circular boundary loop?

1. A
   \( \mu_0 i \)
2. B
   \( \frac{1}{2}\mu_0 i \)
3. C
   Zero
4. D
   \( 2\mu_0 i \)