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Author Question: A 22-W platinum wire at 20C with a temperature coefficient of resistivity of 3.9 10-3 (C)-1 will ... (Read 67 times)

Charlie

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on: Jul 28, 2018
A 22-W platinum wire at 20C with a temperature coefficient of resistivity of 3.9  10-3 (C)-1 will have what resistance at 100C?
 a. 29 W
  c. 26 W
  b. 20 W
  d. 14 W

Question 2

By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0  103 kg/m3, 1 atmosphere pressure = 1.01  105 N/m2, and g = 9.8 m/s2)
 a. 100
  c. 64
  b. 83
  d. 19


huda

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


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