Question

Please tell me how to solve this with explanation!(Total Resistance)

Answer 1

these resisters are actually connected in series if you see the connections correctly so we will add the resistances ie. 2+1+3+1+2+1+3=13 Ohm
so the answer is 13 Ohm.hope this may help you

Answer 2

Dear friend

We can say a set of resistances are in series if same amount of current passes through all the resistors

Effective resistance for series resistors is R=r1+r2+r3+........

And if voltage across a set of resistors is same then we can conclude them to in parallel combination

Effective resistance for parallel combination is 1/R=1/r1+1/r2+1/r3.......

From this we can conclude that in the given diagram all the resistors are in series so simply add them

R=2+1+3+1+2+1+3=13 ohm