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Using Biot-Savart Law, what is the direction of the magnetic field produced by a

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Question: Using Biot-Savart Law, what is the direction of the magnetic field produced by a current flowing in a straight wire?

Options:

  1. Radially inward
  2. Radially outward
  3. Perpendicular to the wire
  4. Parallel to the wire

Correct Answer: Perpendicular to the wire

Solution: 

According to the right-hand rule, the magnetic field produced by a straight current-carrying wire is perpendicular to the wire.

Using Biot-Savart Law, what is the direction of the magnetic field produced by a

Practice Questions

Q1
Using Biot-Savart Law, what is the direction of the magnetic field produced by a current flowing in a straight wire?
  1. Radially inward
  2. Radially outward
  3. Perpendicular to the wire
  4. Parallel to the wire

Questions & Step-by-Step Solutions

Using Biot-Savart Law, what is the direction of the magnetic field produced by a current flowing in a straight wire?
  • Step 1: Identify the straight wire carrying an electric current.
  • Step 2: Use your right hand to apply the right-hand rule.
  • Step 3: Point your thumb in the direction of the current flow in the wire.
  • Step 4: Curl your fingers around the wire. Your fingers show the direction of the magnetic field lines.
  • Step 5: Note that the magnetic field is perpendicular to the direction of the current.
  • Biot-Savart Law – Describes how electric currents produce magnetic fields.
  • Right-Hand Rule – A mnemonic for determining the direction of the magnetic field around a current-carrying conductor.
  • Magnetic Field Direction – The orientation of the magnetic field lines produced by a current.
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