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Author Question: When current reverses direction in a wire, the surrounding magnetic field A) also reverses ... (Read 130 times)

lbcchick

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on: Jul 29, 2018
When current reverses direction in a wire, the surrounding magnetic field
 
  A) also reverses direction.
  B) becomes momentarily stronger.
  C) contracts.
  D) expands.

Question 2

Magnetic field lines about a current-carrying wire
 
  A) extend radially from the wire.
  B) circle the wire in closed loops.
  C) both of these
  D) neither of these


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zacnyjessica

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


lbcchick

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


zacnyjessica

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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