00:01
Hi, let's first find the direction of magnetic field, let's first find the direction of magnetic field the point a.
00:17
So, we know that the magnetic field due to a straight wire is given by the equation what is that b is equal to mu 0 i divided by 2 pi right yes.
00:34
So, this is the important equation for magnetic field due to a straight long wire.
00:42
So, now let's see here you can see that current in the both wires it's current in both wires are same direction both wire are same current in both wire are same point a is equidistant point a is equidistant from the wires.
01:14
So, what you can see from the wires so the magnitude of the field will be also same due to both wires.
01:22
So, we have to say that magnitude of the field of the field will be also same right.
01:37
So, now let's see how to find the see let's explain how we have found we will get the direction of magnetic field.
01:47
So, can any one of you guess what is that how to find what is the rule we are using yes we are using the important yes right hand thumb rule to find the direction of magnetic field.
02:11
So, how you can state that rule yes put your right thumb in the direction of current right thumb in the direction of current...