A pre-electronic thermostat employs a coiled A) wire of low ...

[folubunmi]

A pre-electronic thermostat employs a coiled
 
  A) wire of low conductivity.
  B) bimetallic strip.
  C) tube of mercury.

Question 2

When a bimetallic bar of copper and iron strips is heated, the bar bends toward the iron strip because
 
  A) iron gets hotter before copper.
  B) copper gets hotter before iron.
  C) copper expands more than iron.
  D) iron expands more than copper.
  E) none of the above

[kusterl]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: C

[folubunmi]

Thanks

[kusterl]

Welcome