You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Q: you must use insulated wire or you will effectivly just short out your power source. most modern electro-magnets use wire that is insulated with a thin coating of a special varnish. this allows more winding in a given space. varnish insulated wire is available from nearly any electronics store or catalog or from any business that rewinds electric motors
A:
Does insulated or uninsulated wire work best for electromagnets?