Question

State Ampere's Circuital Law. 
 

Hint:

Ampere's Circuital Law relates the magnetic field around a closed loop to the current enclosed by that loop.

Answer 1

Ampere's Circuital Law states that the magnetic field \( B \) around a closed loop is proportional to the current passing through the loop. The law is expressed mathematically as: \[ \oint_{\text{loop}} \mathbf{B} \cdot d\mathbf{l} = \mu_0 I_{\text{enc}}, \] where:
- \( \oint_{\text{loop}} \mathbf{B} \cdot d\mathbf{l} \) is the circulation of the magnetic field around the loop,
- \( \mu_0 \) is the permeability of free space,
- \( I_{\text{enc}} \) is the current enclosed by the loop.