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Old Saturday, April 06, 2013
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Quote:
Originally Posted by Last Island View Post


A psychrometer is an instrument commonly used in laboratories to measure relative humidity in the air.

An ammeter is a measuring instrument used to measure the electric current in a circuit.



Voltage is electric potential energy per unit charge, measured in joules per coulomb.
psychrometer is used to measure the heat index while hygrometer is used to measure the relative humidity of air in laboratories
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