Question

Can resistance value become zero during a short circuit?

Answer 1

Short-circuit:

1. When the current in a circuit rises rapidly and the electrical connection draws an excessive amount of current from the supply, a short circuit develops.
2. Points directly connected together in a circuit by zero resistance (wire) are considered to be electrically common.
3. Electrically common points, with zero resistance between them, will have zero voltage dropped between them, regardless of the magnitude of the current.
4. A short circuit occurs when the two ends are externally connected with resistance, $\mathrm{R}=0$ is the case of an ideal wire which implies that the voltage difference is zero for any current value ideally.

The current that flows when the terminals are forced to have zero voltage difference is known as the short circuit current. In actuality, the real wires have non-zero resistance.

As a result, a substantial amount of current flows through the wire.

Hence, during a short circuit, the resistance decreases to zero or becomes minimum.