Magnetic Effect of Current Formula : The magnetic effect of current refers to the phenomenon where an electric current flowing through a conductor produces a magnetic field around it. This relationship between electricity and magnetism is a fundamental principle in electromagnetism.
The magnetic effect of current is described by various formulas and laws, including Ampère's Circuital Law, Biot-Savart Law, Right-Hand Thumb Rule, and many more. These Magnetic Effect of Current Formula plays an important role in NEET 2024 syllabus So students are suggested to have a strong grasp on these formulas to perform well in the exam.4π × 10 -7 N·s 2 /C 2
It is called the permeability of free space
At centreB= μ0NI/2rii) At axis
i) B= 0, r < Rii) B = μ0I/2πr, r ≥ R
M = NIA
B = (μ0/2π) m/r2
The magnetic field (B) produced by a single magnetic pole of strength (m) at a distance (r) is given by this formula. However, isolated magnetic poles are theoretical and do not exist in nature.B = (μ0/4π) 2M/r3
It describes the magnetic field along the axis of a magnet with magnetic moment (M). The field strength decreases with the cube of the distance (r).B = (μ0/4π) M/r3
It describes the magnetic field on the equatorial axis of a magnet with magnetic moment (M). The field strength decreases with the cube of the distance (r).