You might have gone through the term **short circuit** while solving electrical circuits. Lets see **what is a short circuit** in electrical circuits.

*When any element between two terminals is replaced by a zero resistance path then it is called as short circuit between two terminals.* *The voltage across the short circuit is always zero regardless of the current through it.* The current flowing through the short circuit path depends upon the circuit condition.

The current flowing through the short circuit path may be *zero, positive or negative*. The positive or negative current denotes the direction of current flow.

Consider a part of a circuit as shown in figure 1 (i). A circuit element is shown in blue box between two points a and b. A short circuit between points a and b take place by replacing circuit element by a conducting path of zero resistance. This is represented by a red line in the circuit as shown in figure 1 (ii). Now the voltage (v) across points a and b must be zero. But current (I) may have any value depending upon the circuit conditions.

Also Read What is a Open Circuit?