Question

Resistances 2 ohm are connected in parallel then the effective resistances is

Answer 1

resistance in paralleL combination -
1/R = 1/R1 + 1/R2
therefore, 1/R = 1/2 + 1/2 
                  1/R = 1 OR  R = 1 


HOPE THIS HELPS...all the best

Answer 2

Hey there !!!

If R₁ and R₂ are resistors connected in parallel combination then 

Effective resistance 1/R =1/R₁+1/R₂

Here R₁=R₂=2 ohms

Effective resistance =1/R =1/2+1/2 =2/2 =1/1

            1/R=1/1

 Effective resistance (R)= 1 ohm

Hope this helped you.......................