Does short circuit always (in every electronic circuit) shunt the resistor that has both sides connected to the short circuit branch?
Does short circuit always ... shunt the resistor that has both sides connected to the short circuit branch?


For most low-frequency circuits, yes. (At high frequencies other effects come into play.)







simulate this circuit &ndash; Schematic created using CircuitLab

Figure 1. Equivalent circuits.

Both ends of R2 are at the same potential due to the shorting link. Since they are at the same potential no current will flow through R2 so it doesn't make any difference if it is in or out of circuit.







simulate this circuit

Figure 2. How quickly can you figure out the resistance between A and B?

Hint: remove the resistors that are short-circuited.