With a low resistance in the connection, a high current will flow, causing the delivery of a large amount of energy in a short period of time.Ī high current flowing through a battery can cause a rapid increase of temperature, potentially resulting in an explosion with the release of hydrogen gas and electrolyte (an acid or a base), which can burn tissue and cause blindness or even death.
In such a case, the current is limited only by the resistance of the rest of the circuit.Ī common type of short circuit occurs when the positive and negative terminals of a battery are connected with a low- resistance conductor, like a wire. In real circuits, the result is a connection with almost no resistance. In an 'ideal' short circuit, this means there is no resistance and thus no voltage drop across the connection. In circuit analysis, a short circuit is defined as a connection between two nodes that forces them to be at the same voltage. Although usually the result of a fault, there are cases where short circuits are caused intentionally, for example, for the purpose of voltage-sensing crowbar circuit protectors. This results in an electric current limited only by the Thévenin equivalent resistance of the rest of the network which can cause circuit damage, overheating, fire or explosion. A short circuit is an abnormal connection between two nodes of an electric circuit intended to be at different voltages.
0 kommentar(er)
