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Author Question: Various new quantities are introduced in this chapter, each having associated units. Which of the ... (Read 75 times)

khang

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Various new quantities are introduced in this chapter, each having associated units. Which of the following quantities is followed by the wrong SI unit for that quantity?
  1.resistivity, m
  2.temperature coefficient of resistivity, (C)-1
  3.electric power, kWh
  4.drift speed, m/s

Question 2

An electric heater is operated with a potential difference of 100 V. If the heating element has a resistance of 20 ohms, what is the power output of the heater and what is the current through it when operating?
  1.2000 W, 5A
  2.2000 W, 25 A
  3.500 W, 5 A
  4.500 W, 25 A



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dreamfighter72

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Answer to Question 1

3

Answer to Question 2

3




khang

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Reply 2 on: Jul 28, 2018
:D TYSM


alexanderhamilton

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Reply 3 on: Yesterday
Excellent

 

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