The magnetic field produced by a current in a long straight wire varies with respect to the radial distance r from the wire as Group of answer choices 1/r2. 1/r3. 1/r. r2. r.

Question

Physics

Junior Monroe

7 September, 08:10

The magnetic field produced by a current in a long straight wire varies with respect to the radial distance r from the wire as Group of answer choices 1/r2. 1/r3. 1/r. r2. r.

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Answers (1)

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Kenley Santos · Answer 1

1/r

Explanation:

The magnetic field produced by a current in a wire decreases with distance from the wire, this means the magnetic field produced by a currents is inversely proportional to it's distance from the wire.

Let E be magnetic field and r distance of wire

We have that,

E is inversely proportional to r

(E) * (1/r)