Question

2. Those substances which have ven lon resistance are called
remains constant​

Answer 1

Answer:

There can be many substances whose resistance remains almost unchanged by increase of temperature.

Materials such as wood and air can be the ones, which has a high electric resistance and it changes rarely with the increase in temperature.

Apart from this there are some metal alloys whose resistance remains almost unchanged.

Answer 2

Answer:

There can be many substance whose resistance remains almost unchanged by increase of temperature .

Material such as wood and air can be the ones which has a high electric resistance and it's changes rarely with the increase in temperature.

Apart from this there are some metal alloys whose resistance remains almost unchanged.

hope it's help you