In 1834, who proposed a law thar states thar the current induced by a change in flow opposes the effect producing the change?
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Correct answer: D
Explanation
The correct answer is Option 4 i.e. Heinrich Friedrich Lenz.
In 1834, Heinrich Lenz, a Russian physicist, proposed a law known as Lenz's Law. This law states that the direction of the current induced in a conductor by a changing magnetic field will be such that it opposes the change in the magnetic field that produced it. Lenz's Law is a fundamental principle in electromagnetism, emphasizing the conservation of energy by opposing the effect causing the induction, thus preventing a perpetual increase in energy.