Question

a wire is cut into three parts equal and then connected in parallel with the same source. how will its
I) resistance and resistivity get affected.
||) how would the total current and the total current through the part change​

Answer 1

I) Resistivity will be same because nature of material is same

resistance may change

II) Total current is equal to the sum of the current passing through each wire in parallel connection

Answer 2

Answer :

resistance is directly proportional to the length of the wire

equal part will have equal resistance

fraction numerator 1 over denominator R e f f end fraction equals 1 over R plus 1 over R plus 1 over R

fraction numerator begin display style 1 end style over denominator begin display style R e f f end style end fraction equals 3 over R

R e f f equals R over 3 space o h m s

current is inversely proportional to the resistance

since there are equal resistances in parallel. Equal amount of current will flow through each part