If the current in a circular loop is doubled, what happens to the magnetic field

Practice Questions

Q1
If the current in a circular loop is doubled, what happens to the magnetic field at the center?
  1. It doubles
  2. It halves
  3. It remains the same
  4. It quadruples

Questions & Step-by-Step Solutions

If the current in a circular loop is doubled, what happens to the magnetic field at the center?
  • Step 1: Understand that a circular loop of wire creates a magnetic field when current flows through it.
  • Step 2: Know that the strength of the magnetic field at the center of the loop depends on the amount of current flowing through the loop.
  • Step 3: Remember that if you double the current, the magnetic field strength also doubles.
  • Step 4: Conclude that if the current in the loop is doubled, the magnetic field at the center will also be doubled.
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