00:01
We have two parallel plates here, one getting a positive charge, one microculum, another plate which is having a negative microculum, and they are separated by a distance of 4 millimeters.
00:16
We are asked what will be the electric field from a distance 1 millimeter from the positive charge plate.
00:25
We know that the electric field between these two pivotal plates is a constant so any electric field that we calculate at 4 millimeter from let's say at this plate will be the same in the electric field that we measure in the middle or at a point one millimeter that's what we are asked for so we are asked what will be the electric field at the distance of 1 millimeter from the pulse to charge plate.
01:05
So let's first calculate the electric field.
01:08
We already understood that from at 1 millimeter, the electric field will be same.
01:12
So let's find the electric field.
01:14
We know electric field is q divided by the capacitance times the distance between these two plates.
01:23
And the capacitance we know is equal to epsilon times the area on the plate, the area of the plate divided by distance.
01:33
So if you plug this here, and we also see this mathematically times d, so d -d cancels out.
01:44
So electric field here is independent of the distance between these two plates...