Why your batteries never deliver their full rated power
In short: Every battery has a hidden tax: internal resistance. This video explains why real-world batteries behave differently than idealized ones, covering how they function in series and parallel circuits while obeying the laws of conservation.
While we often treat batteries as perfect voltage sources, every physical battery possesses natural internal resistance. This resistance causes a drop in terminal voltage, meaning the power delivered to a device is always less than the battery's theoretical capacity.
The video breaks down the mechanics of DC circuits by comparing series and parallel configurations. It explores how current and voltage are distributed across these setups, ensuring that the fundamental laws of conservation remain intact regardless of how many batteries you connect.
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Sources
- Summary by Intellect · source: DC Resistors & Batteries: Crash Course Physics #29
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