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Multiple Choice

Who discovered Ohm's law?

Ohm's law is the relationship that links voltage, current, and resistance in an electrical circuit. It shows that the current flowing through a conductor between two points is proportional to the voltage across those points and inversely proportional to the resistance, assuming temperature stays constant. In simple terms, current equals voltage divided by resistance (I = V/R), and resistance equals voltage divided by current (R = V/I). This foundational rule was discovered by George Simon Ohm, a German physicist, through careful experiments that demonstrated this direct relationship for different materials and configurations. Because of his work, the unit of resistance is named the ohm. While Nikola Tesla, Thomas Edison, and James Watt are all pivotal figures in electrical history, they did not formulate this particular law.

Ohm's law is the relationship that links voltage, current, and resistance in an electrical circuit. It shows that the current flowing through a conductor between two points is proportional to the voltage across those points and inversely proportional to the resistance, assuming temperature stays constant. In simple terms, current equals voltage divided by resistance (I = V/R), and resistance equals voltage divided by current (R = V/I). This foundational rule was discovered by George Simon Ohm, a German physicist, through careful experiments that demonstrated this direct relationship for different materials and configurations. Because of his work, the unit of resistance is named the ohm. While Nikola Tesla, Thomas Edison, and James Watt are all pivotal figures in electrical history, they did not formulate this particular law.