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What is the shape of the magnetic field lines around a circular loop of wire car

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Question: What is the shape of the magnetic field lines around a circular loop of wire carrying current? (2021)

Options:

  1. Straight lines
  2. Concentric circles
  3. Ellipses
  4. Spirals

Correct Answer: Concentric circles

Exam Year: 2021

Solution: 

The magnetic field lines around a circular loop of wire carrying current are in the shape of concentric circles, with the center of the loop being the point of maximum field strength.

What is the shape of the magnetic field lines around a circular loop of wire car

Practice Questions

Q1
What is the shape of the magnetic field lines around a circular loop of wire carrying current? (2021)
  1. Straight lines
  2. Concentric circles
  3. Ellipses
  4. Spirals

Questions & Step-by-Step Solutions

What is the shape of the magnetic field lines around a circular loop of wire carrying current? (2021)
  • Step 1: Imagine a circular loop of wire. This is where the current flows.
  • Step 2: When current flows through the wire, it creates a magnetic field around it.
  • Step 3: The magnetic field lines are invisible lines that show the direction and strength of the magnetic field.
  • Step 4: Around the circular loop, these magnetic field lines form concentric circles. This means they are circles that share the same center.
  • Step 5: The center of the loop is where the magnetic field is the strongest.
  • Step 6: As you move away from the loop, the strength of the magnetic field decreases.
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