The content provides an introduction to the concept of electric current. It explains that the study of the flow of positive or negative charges through a conducting medium over time is known as electric current. This current is typically represented by the symbol "I" and is defined as the rate of flow of charges.
If a certain amount of charge "ΔQ" flows through a conductor in a given time "Δt", then the electric current can be calculated as I = ΔQ/Δt. The SI unit of electric current is the ampere (A).
The content also mentions that when one coulomb of charge flows through a conductor in one second, the current is one ampere. This provides a clear understanding of the relationship between charge, time, and the measurement of electric current.
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by Professor Az... 場所 medium.com 04-22-2024
https://medium.com/@professorazam730/steady-current-66a6646f4090深掘り質問