# What is Bio Savart’s law? and who discovered it

What is the law of Bio-Savart, French scientist Bio and Savart in 1820 formulated a law to find the intensity of the magnetic field at a point near the current carrying conductor, which is called **Bio Savart Law** it is said.

## What is Bio Savart’s law

We have known what is the law of Bio-Sawt, but we also know it in another definition, the law by which the intensity of the magnetic field can be determined. **Bio Savart’s law** It is called

### Prove Bio Savart’s Law

Let x and y be a conducting wire in which I current is flowing. Take a fraction of the length dl in the wire. in which the point p lies at a distance r.

The intensity of the magnetic field at point p depends on the following factors.

Also Read: What is the difference between Mendeleev's periodic law and modern periodic law?

- is directly proportional to the current. dB I
- is directly proportional to the length of the minority. dB dl
- The length of the subsample is directly proportional to the angle formed by the line joining the point p. dB sin
- is inversely proportional to the square of the distance from the minority to the point p. dB 1/r

**Combining all of the above**

dB Idlsinθ/r² dB = k Idlsinθ/r² where k is a constant that depends on the method of measurement.

**in CGS method**– k = 1, dB = Idlsinθ/r² Gauss in air or vacuum

Also Read: Charles's Law

**in SI system**– k = 10⁻⁷ = μ0/4π, dB = μ0/4π. Idlsinθ/r² Tesla

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Also Read: Faraday's law of electrolysis