Question : Which scientist suggested that the magnet must also exert an equal and opposite force on the current-carrying conductor?
Option 1: Michael Faraday
Option 2: André-Marie Ampère
Option 3: Joseph Henry
Option 4: William Gilbert
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Correct Answer: André-Marie Ampère
Solution : The correct answer is André-Marie Ampère.
André-Marie Ampère, a French scientist, proposed that a magnet should exert an equal and opposite force on a current-carrying conductor. A wire carrying current has its magnetic field. A current-carrying wire like a regular bar magnet, attracts a magnetic substance. There is no magnetic effect when the current is removed or the switch is closed. This is known as the magnetic effect of current.
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