Physics PYQ 98 of 144 · Electricity

In short circuit, the value of electric current in a circuit:

  1. ADo not change
  2. BVery low
  3. CIncreases very high
  4. DContinuously changing

71st BPSC

Show answer and explanation

Correct answer: (c) Increases very high

Explanation

A short circuit occurs when a near-zero resistance path lets current bypass the intended load.

By Ohm's Law, I = V/R; as R approaches zero, the current I rises to a very high value.

This excess current causes overheating and fire, which is why fuses and circuit breakers are used.

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