What is the effect of reversing the direction of current in a wire on the magnet

Practice Questions

Q1
What is the effect of reversing the direction of current in a wire on the magnetic field around it? (2019)
  1. The magnetic field disappears
  2. The magnetic field direction reverses
  3. The magnetic field strength increases
  4. The magnetic field strength decreases

Questions & Step-by-Step Solutions

What is the effect of reversing the direction of current in a wire on the magnetic field around it? (2019)
  • 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: If you reverse the direction of the current in the wire, the magnetic field will also change direction.
  • Step 4: This means that the magnetic field lines will point in the opposite direction compared to when the current was flowing in the original direction.
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