What is the relationship between magnetic field strength and distance from a lon

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Question: What is the relationship between magnetic field strength and distance from a long straight conductor? (2023)

Options:

Correct Answer: Decreases with distance

Exam Year: 2023

Solution:

The magnetic field strength around a long straight conductor decreases with distance from the conductor, following the inverse relationship.

What is the relationship between magnetic field strength and distance from a long straight conductor? (2023)

What is the relationship between magnetic field strength and distance from a long straight conductor? (2023)

Step 1: Understand that a long straight conductor is a wire that carries electric current.
Step 2: Know that when electric current flows through the wire, it creates a magnetic field around it.
Step 3: Recognize that the strength of this magnetic field is strongest right next to the wire.
Step 4: Learn that as you move further away from the wire, the strength of the magnetic field gets weaker.
Step 5: Remember that this decrease in strength follows an inverse relationship, meaning that if you double the distance from the wire, the magnetic field strength becomes weaker.

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