1. What is short circuit? What is the common cause of unintentional short circuits in electrical devices?
ans:
short circuit-is an accidental low-resistance connection between two nodes of an electrical circuit that are meant to be at different voltages

common causes of unintentional short circuits is a result in an excessive electric current limited only by the Thevenin equivalent resistance of the rest of the network and potentially causes circuit damage, overheating, fire or explosion.

2. What is a fuse? What happens when you blow a fuse?

fuse-is a type of overcurrent protection device. Its essential component is a metal wire or strip that melts when too much current flows. When the metal strip melts, it opens the circuit of which it's a part, and so protects the circuit from excessive current.

When you blow a fuse, the wire usually snaps in two, and the power running through that circuit is immediately cut off. The excess heat buildup occurs whenever appliances draw more amperage than the circuit can handle. If the fuse is rated for 25 amps, for example, and a user plugs in a 75 amp clothes dryer, the excessive amperage will blow the fuse.


3. How do Circuit breakers Work?

circuit breakers work by maing the electrcity stops in a circuit

3.? When is there an overload in a circuit?

when there is too much usage of electricity in a circuit

6. Why will too many electrical devices operating at one time often blow a fuse?

because of