Question

The strength of magnetic field around a current-carrying conductor is ____________.

Options

• inversely proportional to the current but directly proportional to the square of the distance from the wire.

• directly proportional to the current and inversely proportional to the distance from the wire.

• directly proportional to the distance and inversely proportional to the current.

• directly proportional to the current but inversely proportional to the square of the distance from the wire.

Answer 1

The strength of the magnetic field around a current-carrying conductor is directly proportional to the current and inversely proportional to the distance from the wire.

Explanation:

• When the current across the wire is increased, the magnetic field intensity increases.
• As the distance between the wire and the magnetic field grows, the strength of the magnetic field weakens.