Question

The length of different metallic wires but of same area of cross section
and made of the same material are given below.
Wire Length A 1 m B 1.5 m C 2.0 m i) Out of these three wires which wire has higher resistance? ii) Which wire has higher Electrical resistivity?

Answer 1

Answer: i) C

               ii) All the three

Explanation:

i) Resistance is directly proportional to length. So that means longer the object is more resistance it offers.

ii)Since the nature of the material is the same, there is no difference in the resistivity and therefore, all the three have same resistivity.

Hope this solves your doubt.

Answer 2

Answer:

all of these

Explanation:

because is directly proportional to length . so that means longer the object is more resistance it offer

since the nature of the material is same , there is no difference in the resistivity and therefore , all the have same resistivity