what is the difference between P=hdg and P=vdg.when and where should we use both of them.are the both same?
what is the difference between P=hdg and P=vdg.
when and where should we use both of them.are the both same?
Arun , 9 Years ago
Grade 9
9 grade science> what is the difference between P=hdg and ...
2 Answers
Umakant biswal
@ arun
both formula are nearly same , both defines the formula for buyoncecy , the only thing that u need to understand is that
we use h = pdg in the case of gas where volume expansion takes place ,
both formula are nearly same , both defines the formula for buyoncecy , the only thing that u need to understand is that
we use h = pdg in the case of gas where volume expansion takes place ,
and we use p = hdg is the case of liquid expansion .
HOPE IT CLEARS ..
HOPE IT CLEARS ..
shipra dixit
P=hdg..This is the pressure exerted by a liquid column. Here P is directly proportional to h and d and not proportional to g.If density of a liquid is increased and if h is increased then P will also increase.
P=vdg..we know upthrust=vpg
upthrust=mass*g( v*p=m)
=mg
upthrust is force by water on body in upward direction. in this case P= vpg
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