00:01
Hi everyone.
00:02
So the question is saying to us that we have to find the potential in an equilateral triangle such that the point charge plus two microcrums such that the point charge plus two microcrum are placed at the corner of a triangle.
00:18
So this is the equilateral triangle we see here.
00:22
So in this triangle we can see that we have three point charges at the three corner of the triangle.
00:29
So the charges are are two microculum.
00:33
Here the charge is two microculum and here also the charge is two microcrum.
00:40
Okay and the distance is 2 meter.
00:44
This is also 2 meter and the downward distance is also 2 meter.
00:49
So this will be 1 meter and this also will be 1 meter.
00:55
Okay and this is the midpoint a of the line.
00:59
Okay, so we have to find out the potential at midpoint of any one side so we take here the midpoint a of the side this and we have to find out the potential at a point okay, so this is the distance two meter this is one meter this is two meter so we have to find the length of a b here okay, so we know that here sine theta is always equal to perpendicular divided by hypoteness okay so sine theta is equal to what is the perpendicular in that triangle a b and c okay we consider this point at so sine theta is equal to a b divided by bc here okay so what will be a b here ab is equal to bc multiply by sine theta okay and what is bc here so bc is equal to 2 multiply by sine theta.
02:03
Okay, and we know that the every angle of equilateral triangle is 60 degree.
02:09
Okay, so ab will be equal to 2 sine 60 degree here.
02:16
Okay, so ab is equal to 2 sine 60 degree.
02:20
So we have to find out the potential here and what is the formula of potential? potential is always equal to electric field retorted by distance...