Today I want to demonstrate how to use a vernier
calipers to measure the depth of a beaker, but instead of using a beaker I'll be using a cup For my illustrations, this is key symbol Academy,
and thanks for tuning in Before I dive into that we know that besides
using this vania calipers to measure the Depth of this cup we can still use this vernier
calipers to find The internal diameter of this and if we're
to find it is the internal diameter of this we simply are going to use this external Jaws and we're going to slide it like that Make sure that the inside just grip the cup
like that and we're able to take our readings right there then if you want to find the external diameter
of this we are simply going to use these external jaws and We are going to put them in right there We make sure that this is like this linear
scale we ensure that the sliding joke gets in grip with this In a certain way and Then we are able to take our readings right
there now the purpose of this video is to show you how? We find the depth of this cup using this vernier
calipers now if you look at in this vernier calliper Whenever I have ice like this Something outside here protrudes when this
thing is that the zero mark let's look at it here If you were to look at it closely right there when the jaws are fully closed the thing is
at zero as you can see right there the main scale is at zero and even the first graduation of the vernier scale
is coinciding with the first the zero mark on the main scale
that is when the jaws are fully closed and When it's at that point when the Jews are
fully closed you notice that at the back of my vanya caliper We are having a certain strip right here This strip is tied to this sliding jaw this
one here so when I slide this Joe This strip at the back this one it protrudes
out so when the joists are fully closed This strip is also. It's just at the edge of them so when I start
sliding this right They're like that these strips. That's protruding out like that So the more is like this They're longer this thing protrudes out so
now. What do we do? We now have a nickel deposits fully closed I'm going to get this funnier This is my cup. I want to measure the depth of this so I'll
start sliding so that this thing comes out this So when it starts coming out this is what I'm going to use and Put right in there So as I slide my jaw this thing protrudes out and then I Dip it right there, so I'll just keep regulating
this sliding you're right here So you realize that Renae are just a sliding
Joe this protrusion that Mentos trip goes up to the To the bottom of this Cup and so it means
that the depth of this Cup Is just this distance So it means that this distance, which is the
depth of this Cup is going to coincide with? The distance this sliding Joe has moved from
here to that point so it means that after measuring My depth like that simply come here To my vernier calliper, and I'll take the
readings It is as simple as that So for those of you who do not know how to
take the readings then I'll continue And show you how we take readings on the vernier
calipers so when you are talking about readings on the value caliper We are going to record two readings. This is the reading we call the main scale
reading. This is the main scale reading? Then we have the vernier scale now the vernier
scale is this thing that is sliding. That's the Vanya It has got small graduations on top some graduations
on the vernier scale And it is from this veneer And it is from these graduations of the Vanya
skill that we are able to take the reading of the vernier scale so how exactly? Do we take this reading? This is how we do it shelf a stick the main
scale reading and now if you look at our main scale we have 10 then 11 of course This is 1010 point one ten point two ten point
three point four point five point six point seven point eight fifteen point nine Then eleven so what we do is that we are going
to read our main scale from this figure ten Up to the point where the vernier scale begins
from the vernier scale begins from this point So it means that we are going to read our
main scale up to the point where it stops? So our main scale is going to be ten Ten point one ten point two so it means that
we stop there just before we start where I mean the vernier scale starts from so our main scale is ten point two so our
main scale reading here is ten point two and Of course it is in centimeters Now then we start reading a vernier scale
now our vernier scale has good Graduations that are not numbered, but we
are supposed to be counting these sticks if you if I may label them this is zero one two three So we are going to count these graduations
right from zero And then the one we stopped on we are going
to stop on the one that first coincides with a line in the main scale So if you look at it This one's here if you look at this first
graduation zero it does not coincide with anything in The main scale look at the one it does not
coincide with anything two doesn't three doesn't four Doesn't then we have the fifth line the fifth
line is the first line to coincide with a line in the main scale So when written that fifth line we stop there
so it means that our main vernier scale is? running from zero up to five So when we reach the fifth line Then we are going to write our main scale,
but we are going to multiply it by 0.01 why because our vernier scale is meant
to give us The second place of basing that is the importance
of this final scale so much as we have counted from zero One two three four up to the fifth it means
that we are going to get this as five times zero point zero one and of course our
answer there is 0.05 so it means our vernier scale here is 0.05 And then when we add it means that our overall
answer is ten point two five. That's in centimeters So it means that our vernier scale reading
is ten point two five centimeters, let's do some one more example I'm going to do the same thing as before. We are going to come to our main scale first
and We are going to stop at the point where the
vernier scale begins from so the vernier scale reading begins from here So it's going to be seven seven point one
seven point two point three point four point five seven point six So we stop here, so it's going to be seven Point six of course that's in centimeters,
then we get to a venire scale our vernier scale has got those graduations So let's label them. We have zero one two three four five six seven
eight nine So we begin one does not coincide with anything Did zero then we have the one does not coincide
to? Nothing three Then we have the fourth then we have the fifth
again the fifth line coincides with the first line Coincides with the line in the main scale
they're in the same straight line so it means again. Just like before it's um It's going to become five times zero point
zero one we multiplied by zero point zero one because the vernier scale gives us The accuracy to the second place of decimal
so our answer here is going to become zero point zero Five and when we add we get seven point six
five centimeters and that is how we take Readings on a vernier scale and that is how
we use this vernier scale to find the depth of a cup or a beaker or a fizzle This brings us to the end of this video Thanks for watching feel free to check out
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