Which one of the following devices is used to measure atmospheric pres

Which one of the following devices is used to measure atmospheric pressure ?

Ammeter
Barometer
Potentiometer
Lactometer
This question was previously asked in
UPSC NDA-1 – 2018
A barometer is the device specifically used to measure atmospheric pressure.
Atmospheric pressure is the pressure exerted by the weight of the air column above a point on Earth’s surface. Devices like mercury barometers (Torricelli’s principle) or aneroid barometers are designed to measure this pressure.
An ammeter measures electric current. A potentiometer measures electrical potential difference (voltage). A lactometer is a hydrometer used to test the purity or density of milk.
Exit mobile version