The magnetic field due to a straight current-carrying conductor decreases with d

The magnetic field due to a straight current-carrying conductor decreases with distance from the wire. What is the relationship? (2019)

The magnetic field due to a straight current-carrying conductor decreases with distance from the wire. What is the relationship? (2019)

Step 1: Understand that a straight wire carrying an electric current creates a magnetic field around it.
Step 2: Recognize that the strength of this magnetic field is not constant; it changes depending on how far you are from the wire.
Step 3: Learn that the magnetic field strength (B) decreases as you move further away from the wire.
Step 4: Know that this relationship can be expressed mathematically as B is inversely proportional to the distance (r) from the wire.
Step 5: This means that if you double the distance from the wire, the magnetic field strength becomes half.

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