What happens to the magnetic field when the current in a wire is reversed? (2023

Practice Questions

Q1
What happens to the magnetic field when the current in a wire is reversed? (2023)
  1. It remains the same
  2. It doubles
  3. It reverses direction
  4. It disappears

Questions & Step-by-Step Solutions

What happens to the magnetic field when the current in a wire is reversed? (2023)
  • Step 1: Understand that a wire carrying electric current creates a magnetic field around it.
  • Step 2: Know that the direction of the magnetic field is determined by the direction of the current flowing through the wire.
  • Step 3: When the current in the wire is reversed, it means the flow of electricity changes direction.
  • Step 4: Since the magnetic field direction depends on the current direction, reversing the current will also reverse the magnetic field direction.
  • Step 5: Therefore, when the current is reversed, the magnetic field also reverses.
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