Question

To understand Ampère's law and its application.

Ampère's law is often written
∮B(r) . dl = µ₀ Iₑₙₗ

The circle on the integral means that B(F) must be integrated
a. over a circle or a sphere.
b. along any closed path that you choose.
c. along the path of a closed physical conductor
d. over the surface bounded by the current-carrying wire.

Answer 1

Ampère's law states that the line integral of the magnetic field around an electric current is proportional to the current. It must be integrated along the path of a closed physical conductor, such as a wire.

Step-by-step explanation:

Ampère's law states that the line integral of the magnetic field around an electric current is proportional to the current. The circle on the integral symbol indicates that the magnetic field must be integrated over a closed path. In this case, the correct option is c - Ampère's law must be integrated along the path of a closed physical conductor, such as a wire.