Question

a circular wire is carrying a current sketch the shape of magnetic field lines in plane that is perpendicular to the plane of the wire and passes through its centre

Answer 1

Explanation:

Current-carrying conductor manufactures a magnetic field around it. The direction of current can be resolved by the right-hand thumb rules. If we curl a finger around a wire, such that  thumb is pointing to the direction of flowing current then magnetic field lines take the direction in which our fingers curl the wire.

Magnetic field $=\frac{\mu I}{4 \pi r}$ where, I is known as the current passing through a wire and r is the distance of the magnetic field from the current-carrying conductor, hence, the magnetic field is directly proportional to current and inversely proportional to the mentioned distance.

Answer 2

Explanation:

Explanation:

Current-carrying conductor manufactures a magnetic field around it. The direction of current can be resolved by the right-hand thumb rules. If we curl a finger around a wire, such that  thumb is pointing to the direction of flowing current then magnetic field lines take the direction in which our fingers curl the wire.

Magnetic field =\frac{\mu I}{4 \pi r}=4πrμI where, I is known as the current passing through a wire and r is the distance of the magnetic field from the current-carrying conductor, hence, the magnetic field is directly proportional to current and inversely proportional to the mentioned distance.