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Author Question: Explain the difference between a permanent magnet and an electromagnet. What will be an ideal ... (Read 60 times)

littleanan

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on: Jul 27, 2018
Explain the difference between a permanent magnet and an electromagnet.
 
  What will be an ideal response?

Question 2

What is the theoretical evaporation rate?
 
  A) 1 percent of the water supplied for every 10F of cooling
  B) 5 percent of the water supplied for every 15F of cooling
  C) 5 percent of the water supplied for every 10F of cooling
  D) 0.5 percent of the water supplied for every 1F of cooling


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recede

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A permanent magnet is a piece of soft iron that has its dipoles aligned. An electromagnetic is created when current is passed through a coil of wire and flux lines are created around the wire.

Answer to Question 2

A


littleanan

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Reply #2 on: Jul 27, 2018
Thank you!


recede

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Reply #3 on: Jul 27, 2018
Always glad to help...


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