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A short circuit is a circuit containing a path of very low resistance in parallel with some other part of the circuit. Discuss the effect of a short circuit on the portion of the circuit it parallels. Use a lamp with a frayed line cord as an example.

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Answer:

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Explanation:

A frayed cord means that the insulation of the cord is worn out which exposes the cord and when it touches any other conductor a short circuit happens which is basically the flow of very high amount of current.

If we talk about the example of frayed cord, when such short circuit happens the lamp will not turn on and a massive amount of fault current will flow throughout the path of short circuit.

Now what happens?

There are two possibilities;

  1. If there exists a circuit breaker, then no substantial amount of damage would be done since the circuit breaker will trip itself and open the circuit that eventually halts the fault current.
  2. If there is no circuit breaker, then this massive fault current will keep on accumulating that causes excessive heating of the conductors and also producing sparks which most probably would end up in a fire hazard.

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