The formula of Magnetic Flux is represented by. D Φ B B d S. Volume Charge Density Electric Field In Material Space Electromagnet Electric Field Electromagnetic Field Electricity Where Φ is the flux and A is the cross-sectional area in square. . It includes Magnetic flux density and Electric Flux. Here vector B is the magnetic flux density r is the radial distance from the wire vector e a is the vector twisting. Dimensional Formula of Magnetic Flux. The Magnetic Flux is basically measured with the help of a Flux meter. For a varying magnetic field we first consider the magnetic flux through an infinitesimal area element dS where we may consider the field to be constant. Phi _B BA. The dimensional formula of Magnetic Flux is given by M 1 L 2 I-1 T-2 Where M Mass. What is the formula for magnetic flux density. B 0 external magnetic flux density. B φ A 065 106 W b 1256 103 m2 5175 104 T B φ A