00:01
In this problem, we need to explain the magnetic effects of electricity here.
00:08
So, magnetic field is a vector field, right? so this describes the magnetic influence on moving electric charges, right? electric currents and magnetic materials.
00:20
So, we will just look upon that electric current produces magnetic effect.
00:26
So this magnetic effect is actually electric current, which is basically known as electromagnetic effect.
00:36
So now we will see further that how it phenomena this phenomena works.
00:50
So when a compass is brought near a current carrying conductor, the needle of compass gets deflected because of flow of electricity.
01:03
Right.
01:03
So this shows that electric current produces a magnetic field.
01:07
Sorry, magnetic effect.
01:09
Okay.
01:13
So, so.
01:13
So this deflection of compass shows the magnetic effect.
01:21
Right.
01:22
So you're we need to know a few points for you can say properties of magnet that a free suspended magnet always points towards north and south direction.
01:35
And the pole of a magnet which points towards north direction is called north pole or north seeking you can say.
01:42
So the pole of a magnet which points towards south direction is called south pole or south seeking, right? so like poles of magnet repel each other when they are put together right? so suppose i'm telling this here that here is the north pole and this is the north pole and this is south pole.
02:05
We have a bar magnet right.
02:07
So here is here.
02:09
So these two actually repel each other.
02:13
Okay so this is what we are going to say and reply so now we can say here okay so now we are dealing with magnetic field and field lines right so we have suppose we have a magnet here let us say let us suppose we have a magnet here right so this magnet has one north pole and one another is south hole right so these magnetic field like these because you can say magnetic lines of forces you can see so this is actually magnetic lines magnetic field this makes magnetic field so this is going like this is going like this right this is going like this we are just making it in this way so these lines of forces, okay, so these lines of forces are from now north to south.
03:43
You must remember this, right? so now from north it will go out and in south it will come into.
03:53
Right.
03:54
So this is how we describe this phenomenon.
03:59
Okay.
04:02
So in this way, these are the lines of forces.
04:12
This is the basic thing we need to know.
04:29
So this we have described about the magnet, right? so similarly it happens with you can say current flowing through a straight conductor.
04:44
Let us take an example.
04:46
So magnetic field due to current through a straight conductor we are talking about.
04:54
Suppose a current carrying straight conductor has magnetic field in the form of concentric circles right around it.
05:03
Magnetic field of current carrying straight conductor can be shown by magnetic field lines.
05:11
The direction of magnetic field through a current carrying conductor depends upon the direction of flow of electric current.
05:24
The direction of magnetic field gets reversed in case of a change in the direction of electric current.
05:32
Let current carrying conductor be suspended particularly, we have supposed, and electric current is flowing from north to south...