what is pressure? types of pressure and pressure units 

Anil as per unit of barometer we can see the pressure, if barometer unit is mmhg than we can convert mmhg to bar or kg/cm2 for better understanding

@@gopalstudystudio1249 so what is work done per mm of atmospheric pressure So if we used hundred barometer then it's become a significant impact???

@@gopalstudystudio1249 if x joules⚡⚡ per mm work done with barometer mechanical aneroid barometer then 100 time⌚ work done is definitely a kilo joules⚡ as per 10 kg per mm is estimated???

@@anilkumarsharma8901 Android barometer used to measure pressure .....why u want to calculate work done by barometer

@@gopalstudystudio1249 if we used a big barometer mechanical work done then it's become a significant amount of joules⚡⚡ per year😆😆😆 and we found out lots of joules⚡ in a battery🔋🔋🔋 storage??? Through the capacitors which is useful in emergency🆘🚨 situation???