A wire of resistance 9 ohm having length 30 cm is tripled on itself what is its new resistance

Resistance = 9 ohm Length=30 cms R=s*1/a Therefore :- if l=1/3 then run will also be =1/3 THEREFORE :- (1/3)*3=1 ohm Now, when these 3 resistore are joined then :- (1/3)*3= 1 ohm {Answer}