#头条创作挑战赛 #
Discovery of Ohm's Law:
A long time ago, there was a scientist named Ohm, who was very interested in the relationship between current and voltage, so he began to conduct experiments. He used a battery, some wires and a light bulb to connect them together. When he energized the battery, the light bulb lit up.
Ohm was so clever that he realized that if he changed the magnitude of the voltage or current, the brightness of the bulb would also change. So he began experimenting under different voltages and currents, recording the brightness of light bulbs.
His experimental data was very interesting, and he found that when the voltage increases, the current also increases. Moreover, when the ratio of voltage and current remains constant, the brightness of the bulb also remains unchanged. This proportional relationship became known as Ohm's law.
Ohm discovered an important fact in his experiments: there is a simple proportional relationship between current and voltage. He expressed this relationship in a mathematical formula that came to be known as Ohm's law.
The discovery of ohms had a profound impact on the development of electricity. It gives us a better understanding of the relationship between current and voltage and allows us to better design and use circuits.
I believe that the vast majority of people know this theorem, so do you know what applications it has in real life?
Life app
Electronics: Ohm's law is the foundation of electronics. When designing a circuit, we need to know the relationship between voltage, current, and resistance, which requires the use of Ohm's law.
Battery life: Ohm's law can be used to calculate the life of a battery. By measuring the voltage and current of the battery, we can calculate the internal resistance of the battery, and then calculate the life of the battery.
Safety circuit design: Ohm's law can be used to design safety circuits. In circuits, equipment can be protected from damage or overload by limiting the current. Ohm's law can help us calculate how much resistance we need to use to limit the magnitude of the current.
Troubleshooting circuits: When troubleshooting, Ohm's law can help us identify problems in our circuits. If the voltage, current, and resistance in the circuit do not conform to Ohm's law, then there is a problem in the circuit.
Lighting design: When designing lighting systems, Ohm's law can help us calculate how many bulbs we need to use to produce the desired brightness. By measuring voltage and current, we can calculate the power of each bulb and, in turn, how many bulbs need to be used.