Question

What happens when resistance is zero?

Answer 1

Answer:

Explanation:

When the resistance in any circuit is equal to zero then the current passing through that circuit will be infinite.

Answer 2

When resistance is zero, conductors start behaving as superconductors. This condition can also be called as short circuit. Current is assumed to be infinite in such case.

What is resistance?

Resistance is the opposition or obstacle provided by any load in the flow or path of current. According to Ohm's Law:

V=IR, where V is the potential difference applied across a load with resistance R so that current of magnitude I can flow through it.

Understanding zero resistance:

• When the resistance is zero, superconductivity can be achieved in loads or conductors.
• It means the current becomes maximum across the load.
• Below at specific temperature, resistance can be brought to zero, and superconductivity can be achieved.

Note:

It is a very ideal case for resistance to be zero. And it is only a theoretical concept. Ideal ammeters are considered to be a short circuit or have zero resistance.