Suppose you have been commissioned to design a bimetallic strip thermometer like the one shown in the figure. In addition, you have been instructed that metal 2 must be copper and must be the one that experiences the greatest curvature. Which of the following materialis) in the table could be used as metal 1, so that when the bimetallic strip is heated it bends downward? Material Aluminum Coefficient of linear expansion a(K³) 2.4 x 105 Steel 1.2 x 10 1.7 x 10 2.0 x 10 1.9 x 10 Copper Brass Bronze a) Steel. b) Aluminum, bronze and brass. c) Only aluminum and brass. d) Only bronze and brass.

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Suppose you have been commissioned to design a bimetallic strip thermometer like the one
shown in the figure. In addition, you have been instructed that metal 2 must be copper and must
be the one that experiences the greatest curvature.
Which of the following material(s) in the table could be used as metal 1, so that when the
bimetallic strip is heated it bends downward?
Material
Coefficient of linear expansion a(K)
Aluminum
2.4 x 105
Steel
1.2 x 105
Copper
1.7 x 105
Brass
2.0 x 105
Bronze
1.9 x 105
a) Steel.
b) Aluminum, bronze and brass.
c) Only aluminum and brass.
d) Only bronze and brass.
Transcribed Image Text:Suppose you have been commissioned to design a bimetallic strip thermometer like the one shown in the figure. In addition, you have been instructed that metal 2 must be copper and must be the one that experiences the greatest curvature. Which of the following material(s) in the table could be used as metal 1, so that when the bimetallic strip is heated it bends downward? Material Coefficient of linear expansion a(K) Aluminum 2.4 x 105 Steel 1.2 x 105 Copper 1.7 x 105 Brass 2.0 x 105 Bronze 1.9 x 105 a) Steel. b) Aluminum, bronze and brass. c) Only aluminum and brass. d) Only bronze and brass.
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