Understanding Short Circuiting in Electrical Circuits

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In summary, the diagram shows a circuit with resistors R1 and R2, as well as a switch. When the switch is closed, there is no current flowing through R2 due to the alternate resistance-free route created by the switch. This means that the current will be split, with the majority going through the wire and a small amount going through the resistor. This is a general feature of short circuiting, not just for resistors. The pending approval process mentioned in the conversation is not related to the circuit discussion.
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Gear300
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A (roughly made) diagram of the circuit is given in the attachment. The red zigzags represent resistors R1 and R2; the blue line is a switch. Why is it that when the switch is closed, no current runs through R2? The explanation I was given was because there is an alternate resistance-free route...but can someone elaborate more on this. Technically, wouldn't the current split along the route?
 

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wut up...quick question: how long does it take for this pending approval process to finish?
 
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  • #3
Can't see the image, but...I'm guessing the switch creates a path that shorts the ends of the resistor R2, right?

No current would flow in the resistor if the wire is perfect, with no resistance at all. If there is any resistance in the wire, then the current will be split, with the bulk of the current going through the wire, and the tiny remainder going through the resistor.
 
  • #4
Thats right...it creates a path that shorts the ends of resistor R2. So, would that be a feature only for resistors, or would the same thing happen if I replaced R2 with a capacitor...or is that just a general feature of short circuiting?
 
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