1.

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

Answer»

Solution :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`


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