Using a sling psychrometer, you measure the air temperature to be 12°c and the wet-bulb temperature to be 8°c. what is the wet- bulb depression?

Compare the quantity in column a with the quantity in column b. pa p a is tangent to the circle at a. column a column b ap a p ax a x question 4 options: the two quantities are equal. the quantity in column a is greater. the relationship cannot be determined from the information given. the quantity in column b is greater.