div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Physics Main Physics src=https:reader030fdocumentsusreader030viewer2022012609619c67495da29d47546b7106html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Physics Main Physics src=https:reader030fdocumentsusreader030viewer2022012609619c67495da29d47546b7106html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Physics Main Physics src=https:reader030fdocumentsusreader030viewer2022012609619c67495da29d47546b7106html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Physics Main Physics src=https:reader030fdocumentsusreader030viewer2022012609619c67495da29d47546b7106html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divpSo why is the magnec field outside of solenoid is negligible pdiv