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The magnetic field of a bar magnet most closely resembles the magnetic field of

A. a horseshoe magnet

B. a straight current- carrying wire

C. a stream of electrons moving parallel to one another

D. a current- carrying wire loop

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  24. The diameter of a hydrogen atom is approximately ______ cm.
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  26. Define as that pole which when placed in air from a similar and equal pole repels it with a force of…
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