Question

find the effective resistance ​

Answer 1

Effective resistance for fig A.

10 Ohm

[hint. find eq. with 3 and 7(series)

then the eq. of that with10ohm(AC) (parallel. add the resultant with 10 ohm(BC)(series) then with 30ohm(parallel) ]

Effective resistance for fig B.

30/4. Ohm=7.5

[hint join the point of 3 ohm and 6 ohm together.

Then, find eq. resistance of 3 and 6(parallel).

then add that equivalent with 8 ohm(series).

then find the eq. resistance to 10 ohm(parallel).]

Hope it helps...

Regards...

Leukonov/OLegion