Physics, 04.07.2019 00:00 elondamason

Four compasses are placed around a wire, as shown. what is the best conclusion that can be drawn? a) a current flows up the wire. b) a current flows down the wire. c) a current flows, but its direction cannot be known. d) a current does not flow in the wire.

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Four compasses are placed around a wire, as shown. what is the best conclusion that can be drawn?...