TEACHING VIDEO: Biot Savart's Law

Biot Savart's law for magnetostatics field is comparable with coulomb's law for electrostatic. This formula is a universal formula, suitable to find magnetic field intensity for non-symmetrical field and also symmetrical field. Example of non symmetrical field is field contributed by short filament current, surface current on small surface area and field due to current in small volume structure. Analysis using Biot Savart's law is rather complicated complicated compared to the method after that (Ampere's law).
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TEACHING VIDEO: Biot Savart's Law

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CHAPTER 7: Biot Savart's Law

Chapter 7 is the beginning of magnetostatics. You already learnt about electrostatic field and their properties. Electrostatic field produced by static charge. However, when the charge started moving with constant velocity, it become direct current, and direct current is the source of magnetostatics field.


Part 1: Current Elements

In Part 1, you will be introduced with current elements. The Magnetic field intensity can be produced by different current elements such as filament current current, surface current element, and volume current element. Here, we will initially introduced with the three different current elements.

https://youtu.be/hpJrBcG6OwQ


Part 2: Filament Current Elements

For Part 2, you will be introduced with Filament Current Element. Filament current elements can produces magnetic field intensity around it. Using Biot Savart's law, we can find the magnitude and direction of the magnetic field around the filament current.

https://youtu.be/Ag_vHL-v5yE


Part 3: Filament Current Elements (Example 1)

In Part 3 here, you will see how to determine the Magnetic Field Intensity for filament current elements using Biot Savart's Law.

https://youtu.be/LWTYRmIoqXo


Part 4: Circular Loop Filament Current Elements

For Part 4, you will see the analysis of magnetic field intensity produced by circular loop filament current using Biot savart's Law.

https://youtu.be/7mh6eLwsiLc


Part 5: Circular Loop Filament Current Elements

Part 5 shows the analysis of magnetic field intensity produced by Solenoid current using Biot savart's Law. Solenoid is a device constructed by having wire wound with many number of turns.

https://youtu.be/QuUGG3V5GCA


Part 6: Homework.

The explanation about the questions are given here. Please do the homework within the given time.

https://youtu.be/h8KtQ40iEzg


EXTRA: Easiest Way to solve cross product without confusing

Solving cross product is vital in Magnetostatics. Somehow we will be easily confuse about the -ve or +ve sign. Therefore, I show you a method to solve the cross product easily.

https://youtu.be/W-dTFV67lsA
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