Magnets and magnetic fields

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Question 40

Easy

An experimental physicist measures the magnetic flux density, $B$ , at various radial distances, $r$ , from a long, straight, current-carrying wire.

The results of this investigation are plotted in Figure 1 as a graph of magnetic flux density, $B$ , against the reciprocal of distance, $1r\displaystyle \frac{1}{r}$ .

Figure 1: A graph of magnetic flux density against the reciprocal of distance from a straight current-carrying wire.

Describe the relationship between the magnetic flux density, $B$ , and the reciprocal of the distance, $1r\displaystyle \frac{1}{r}$ .

[2]

Magnets and magnetic fields

Question 40

Magnets and magnetic fields Questions

Magnets and magnetic fields

Question 40

Magnets and magnetic fields Questions