Which devices is sued to measure atmospheric pressure

GP Solids Fluids

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

  1. Ammeter
  2. Barometer
  3. Potentiometer
  4. Lactometer

Answer

An ammeter (from Ampere Meter) is a measuring instrument used to measure the current in a circuit. Potentiometer is essentially a voltage divider used for measuring electric potential (voltage). A lactometer is used to check purity of cow's milk.

The correct option is B.