A wire has a resistance of 6 Ω. It is cut into two parts and both half values are connected in parallel. The new resistance is .... 

(1) 12 Ω

(2) 1.5 Ω

(3) 3 Ω

(4) 6 Ω

(2) Given R=6Ω.

When resistor is cut into two equal parts and connected in parallel, then

Req=R/22=R4=64=1.5Ω

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