What happens if a wire has too much current going through it?
In this situation, a very large current can occur, producing a lot of heat and a fire hazard. If a short circuit occurs—or even if too many appliances get hooked up to one wire so that too much current flows—the wire in the fuse heats up quickly and melts, breaking the circuit and preventing a fire from starting.
What effect does a current through a wire have on the wire?
An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.
Where does excess current go?
When an excessive current passes through an circuit then (R=0) so current is very large as V=ir so, it results in the short circuit.
What should you do if a hydro wire falls close to you?
Actually if a hydro wire falls close a person, best advice is not to walk, but rather jump on one leg away, because there could be a potential. To maintain a current into a ground, there has to be a potential and that requires 2 points to complete the circuit. Highly active question.
How is current related to the resistance of a wire?
Ohms law states that “Electric current is directly proportional to the voltage, while the current is inversely proportional to the resistance.” After increasing the voltage, the electrical current increases, which then minimizes power loss during transmission. Some of the factors that increase the resistance of a wire include:
How does the type of current affect the flow of electricity?
The type of electric current affects how electricity travels through wires. The electrical current in direct current tends to flow in a single direction whereas it is quite the opposite in alternating current since it reverses direction.
How does the current flow in an AC circuit?
In an AC circuit, the direction of the current flow is continuously alternating. The current passes through the live Wire from the generator, then through your electrical appliance, and then returns to the generator through the neutral Wire, thereby completing the circuit.