Find the effective resistance between the points A and B in the network shown In the figure.

Explanation

Resistance `R_(1) = 2Omega, R_(2) = 6 Omega` and `R_(3) = 3 Omega`
`= R_(2) ` and `R_(3)` are in parallel combination
`(1)/(R_(4))=(1)/(R_(2))+(1)/(R_(3))=(1)/(6) +(1)/(3)`
`= (1+2)/(6) = (3)/(6)=(1)/(2) Omega`
`R_(4) = 2 Omega`
Resistance `R_(1)` and `R_(4)` are in series combination
`R_(eq)= R_(1) + R_(4)`
= 2+2= `4Omega`