When an electric current is passed through a metallic conductor, a nearby compass needle gets deflected. What is the reason for this deflection?
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A.
The electric current creates an electric field that repels the needle.
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B.
The conductor gains magnetic properties due to heating.
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C.
The electric current generates a magnetic field around the conductor, influencing the needle.
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D.
The electric current produces heat in the conductor, affecting the needle.
Correct Answer:
C. The electric current generates a magnetic field around the conductor, influencing the needle.
Explanation:
When an electric current flows through a metallic conductor, it produces a magnetic field in its vicinity, a phenomenon known as the magnetic effect of electric current. A compass needle, which is essentially a small magnet, experiences a force when placed within this magnetic field, causing it to deflect from its original position. This interaction demonstrates that electricity and magnetism are closely linked, as the deflection occurs specifically because the current-carrying wire acts like a magnet.
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