Question

A wire of length /, made of material resistivity ρ is cut into two equal parts. The resistivity of the two parts are equal to,
(a) ρ
(b) p/2
(c) 2 ρ
(d) 4 ρ

Answer 1

Answer:

Length=l, Receptivity=P

cut into equal parts,

P does not depends upon length, area, etc.

If a metal is considered either all cut it or twist it it's P will not change.

So, P is the ans.

Explanation:

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