The unit of magnetic flux in terms of lines of force is ________.

The correct answer is option 3):(1 wb = 108 lines of force)

Concept:

• The magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or Φ_B.
• Magnetic flux is no. of the magnetic lines of force present per unit surface. Magnetic flux is often also called magnetic flux density. or even magnetic field line density.
• Weber (Wb) is the SI unit of magnetic flux, which is named after Wilhelm Eduard Weber, a German physicist.
• 1 wb = 108 lines of force
•  Dimension: Wb = V⋅s = N⋅m⋅A⁻¹ = kg⋅A⁻¹⋅s⁻²⋅m² = T⋅m^2, where A stands for ampere, T for tesla, V for volt, and N for newton.