Question

A conducting wire of uniform cross-sectional
area 'a', length 'l' and electrical resistance
'R' is cut into equal pieces of length 1/2 each.
The resistivity of each part compared to that
of the original wire
(a)is halved
(b)is doubled
(C)remains same
(d) becomes zero​

Answer 1

Explanation:

d) one is correct answer

Answer 2

Answer:

A) is halved

Explanation:

We know that

resistivity is directly proportional to the length of the wire so if the wire is halved the resistivity will also be halved hence option a is the correct answer