Author Question: What are the disadvantages of using a water-in-glass thermometer to measure outside air ... (Read 131 times)

ss2343 · **on:** Jul 28, 2018

What are the disadvantages of using a water-in-glass thermometer to measure outside air temperature?

Question 2

Two wires A and B with circular cross sections are made of the same metal and have equal lengths, but the resistance of wire A is three times greater than that of wire B. What is the ratio of the cross-sectional area of A to that of B?
1.3
2.3
3.1
4.1/3
5.1/3

jaymee143 · **Reply #1 on:** Jul 28, 2018

Answer to Question 1

The major disadvantage is that water exists only between 0 and 100C so it might
freeze or boil in the thermometer.

Answer to Question 2

5