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If the current in a wire is doubled, how does the magnetic field at a point 1 me

Practice Questions

Q1
If the current in a wire is doubled, how does the magnetic field at a point 1 meter away change?
  1. It doubles
  2. It quadruples
  3. It remains the same
  4. It halves

Questions & Step-by-Step Solutions

If the current in a wire is doubled, how does the magnetic field at a point 1 meter away change?
  • Step 1: Understand that a wire carrying current creates a magnetic field around it.
  • Step 2: Know that the strength of the magnetic field depends on the amount of current flowing through the wire.
  • Step 3: Remember that if the current is doubled, the magnetic field strength also changes.
  • Step 4: Since the magnetic field is directly proportional to the current, if the current is doubled, the magnetic field will also double.
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