What is the direction of the magnetic field inside a long straight current-carrying conductor?
Correct Answer: Magnetic field inside the conductor is zero.
- Step 1: Identify the long straight conductor that is carrying an electric current.
- Step 2: Use your right hand to apply the right-hand rule. Point your thumb in the direction of the current flow.
- Step 3: Curl your fingers around the conductor. The direction your fingers curl represents the direction of the magnetic field lines.
- Step 4: Understand that the magnetic field lines are circular and lie in planes that are perpendicular to the conductor.
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