Problem

Example 27.17 (a) What is the magnetic flux through one turn of a solenoid of self-inductance

8.0 \times 10^{-5} \text{ H}

when a current of

3.0 \text{ A}

flows through it? Assume that the solenoid has 1000 turns and is wound from wire of diameter

1.0 \text{ mm}

. (b) What is the cross-sectional area of the solenoid?