Craig brings a compass near a wire that has an electric current for the discovery of electromagnetism. Option D is correct.
The physical interplay of electric charges, magnetic moments, and the electromagnetic field is known as electromagnetism.
The electromagnetic field can be static, moving slowly, or forming waves. Electromagnetic waves are commonly referred to as light and are subject to optics laws.
The Earth's inherent magnetic fields are detected with the help of a compass. Because of gravity force, the Earth's iron core is a mixture of liquid and solid crystal.
The magnetic force of the Earth is thought to be generated by movement in the liquid outer core.
Craig brings a compass near a wire that has an electric current for the discovery of electromagnetism.
Hence, option D is correct.
To learn more about the electromagnetism, refer to the link;
https://brainly.com/question/3427992
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