Measure the equipotential lines for the source electrode configuration consistin
ID: 1330048 • Letter: M
Question
Measure the equipotential lines for the source electrode configuration consisting of small circular electrodes and a ring-shaped conductor. Note that the location and size of source electrodes should be recorded. Place the fixed test electrode in the center O of the conducting plate and investigate various points inside the ring-shaped conductor to confirm that the interior of the ring-shaped conductor is equipotential. Then find and record the coordinates of points that have the same potential as the interior of the ring-shaped conductor. Answer the following questions. Show that the interior of the ring shaped conductor is equipotential in terms of Gauss' law, charge distribution, etc. By using this phenomena, explain why the wireless phone does not work inside the elevator.Explanation / Answer
3.
in an elevator, you are literally surrounded by metal, which blocks the 'RF' signal between your phone and the nearest cell site. It may work in some elevators, but they would have to be very close to a cell site
Coupled with the other electromagnetic fields generated by the electrical systems of the lift, it is no wonder, that signal is reduced or lost.