Who among the following discovered that a wire carrying electric current can attract or repel another wire next to it that's also carrying electric current?
Correct Answer :
Andre-Marie Ampere
Solution :
The correct option is Andre-Marie Ampere.
Explanation:
In 1820, French physicist and mathematician André-Marie Ampère discovered that two parallel wires carrying electric currents exert magnetic forces on each other:
• If the currents flow in the same direction, the wires attract each other.
• If the currents flow in opposite directions, the wires repel each other.
This foundational discovery led to Ampère's law of electromagnetism and laid the groundwork for modern electrodynamics.
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