Answers to "Dangers and Prevention of Short Circuit and Overload through this online treasure hunt."


1. What is short circuit? What is the common cause of unintentional short circuits in electrical devices?
A short circuit is an accidental low-resistance connection between two nodes of an electrical circuit that are meant to be at different voltages.This results 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?
Fuses (and other overcurrent devices) are an essential part of a power distribution system to prevent fire or damage. When too much current flows through a wire, it may overheat and be damaged, or even start a fire. Wiring regulations give the maximum rating of a fuse for protection of a particular circuit. Local authorities will incorporate national wiring regulations as part of law. Fuses are selected to allow passage of normal currents, but to quickly interrupt a short circuit or overload condition.

3. How do Circuit breakers Work?
Unlike a fuse, which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.

4. When is there an overload in a circuit?
This excessive current load can be a result of electrical insulation failure ( a short circuit) or human error. A correctly designed electrical system incorporates suitable overload protection devices to prevent damage should such a situation occur. Fuses and circuit breakers are most commonly employed for this purpose.

5. Why will too many electrical devices operating at one time often blow a fuse?
It is because many electircal devises operated in a same especially if its connected in one wire where these devices are connected. Because of too much heat, it may explode resulting the blow of the fuse.

6. What are the dangers of short circuit and overload?
the dangers of short circuit and overload is it may cause a fire because of to much fire because of too much heat due to circuit overload and blows the fuse, which makes the circuit of the building not to operate, or it may cause a ground shock, in whish occur when there is a prescence of wet matters.


Eugene Paul Brian D. Sebilo
Daryl Abarracin
Mary Gold Gaspar
IV- DOVE

P.S.: Where not in pair because section dove students' population is 43 and there some groups which nees to work by 3s...

I like my SeatmaTes

I like my Seatmates very much. We enjoy talKin' and... themost popular thing to Do, Sharing.
One of My schoolmates quoted that " Sharing is Loving". So, my seatmates praticed this kind of habit.. even thought I"m not so much.. taBian. But we tried to do best ... making our Grades high.
- Eugene D' ZerG