The relationship between electricity and magnetism was first discovered in which of the following pairs?

Two clouds

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Current carrying wire and magnetic compass

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Between two bar magnets

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Earth and magnetic compass

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Solution

The correct option is B Current carrying wire and magnetic compass
Hans Christian Oersted (1777-1851) Danish physicist and chemist, the professor at Copenhagen. He observed that a compass needle suffers a deflection when placed near a wire carrying an electric current. This discovery gave the first empirical evidence of a connection between electric and magnetic phenomena.

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