Did you know that there are three conditions in electrical circuits?
Yes, you read it right! there are three of them
the first one is what we called the closed circuit.
The closed circuit allows travel of current from a source through a load and back to the source.
a good example for this one is the picture below.
The second condition is what we called the Open circuit.
The current flowing from the Open circuit is interrupted by a break in a circuit.
This results in the off condition of a load or the bulb in our example. 
So the last condition is what we called the Shorted circuit.
In a shorted circuit, the current flowing bypasses the load which is the bulb in our example.
This results in the overload of the circuit and it can possibly blow.
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