1.

Who discovered that a wire conveying current was able to deflect a pivoted magneticneedle?(a) Hans Christian Oersted(c) Alessandro Volta(b) Thomas Alva Edison(d) Benjamin Franklin

Answer» <p>Discovered on 21 April 1820 by Danish physicistHans Christian Orsted(1777–1851), when he noticed that the needle of a compass next to a wire carrying current turned so that the needle was perpendicular to the wire.option a</p>


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