Physics

Problem

A solenoid with

1000

turns is required to produce a magnetic field of

2.0 \times 10^{-2}\,\text{T}

when a current of

2.5\,\text{A}

flows through it. Determine the minimum length of the solenoid. (Use

\mu_0 = 4\pi \times 10^{-7}\,\text{T m A}^{-1}

.) a)

0.32\,\text{m}

0.16\,\text{m}

1.6\,\text{m}

0.08\,\text{m}