Multiple Choice
A platinum wire is used to determine the melting point of indium. The resistance of the platinum wire is 2.000 Ω at 20°C and increases to 3.072 Ω as indium starts to melt. What is the melting point of indium? (The temperature coefficient of resistivity for platinum is 3.9 × 10-3/C°.)
A) 117°C
B) 137°C
C) 157°C
D) 235°C
E) 351°C
Correct Answer:
Verified
Correct Answer:
Verified
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