You can try using a compass in place of this , the needle compass would move or shake when something was interfering with electromagnetic field the compass relies on the work properly.
(the needle compass; shake; T:when something was interfering with electromagnetic field the compass relies on the work properly) (something; was interfering; with electromagnetic field) Context(something was interfering,List([91, 116))):(the compass; relies properly; on the work) (the needle compass; would move; ) Context(the needle compass would move,List([47, 76))):(You; can try; using a compass in place of this) Context(You can try the needle compass would move,List([0, 76))):(You; can try using; a compass; L:in place of this)
something was interfering,List([91, 116)) the needle compass would move,List([47, 76)) You can try the needle compass would move,List([0, 76))
the needle compass something the compass the needle compass You You
shake was interfering relies properly would move can try can try using
T:when something was interfering with electromagnetic field the compass relies on the work properly
with electromagnetic field
on the work
using a compass in place of this
a compass L:in place of this