Just as in a bar magnet, the magnetic field of a wire with a current forms a cylinder shape around the wire.
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1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?