![]() The big i current isn't flowing through the original resistor. The original resistor doesn't mind a bit. The thing you didn't quite get right is what gets damaged. That tiny denominator makes i really big. Ohm's Law says the current changes from i = v/R before the short to i = v/0.001 after the short. All the current that flowed in the original resistor now starts flowing through the "shorting wire". When you "short out" a resistor, you are adding a really small-valued resistor (like 0.001 ohms) right next to the original resistor. ![]() ![]() 7 k Ω ⋅ 2 μ F start text, R, 2, end text, dot, start text, C, 6, end text, equals, 4, point, 7, start text, k, end text, \Omega, dot, 2, mu, start text, F, end text. Examples of reference designators are R1 \text = 4.7\,\text k\Omega \cdot 2\,\mu\text F R2 ⋅ C6 = 4. – When you place a component in a schematic you often give it a unique name, known as a reference designator. ![]()
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