Question

plz answer as soon as possible

Answer 1

now there are two parallel combination of resistances
both as 6 and 6

the parallel combination for resistance in 1st and 2nd branch is
1/r1=1/6+1/6=2/6
r1=6/2
r1=3 ohm
and same for resistance in 3rd and 4th branch
r2=3ohm
the resultant ckt. will be series combination of 2 three ohm resistances
as req.=3+3=6ohm
now tha current will be equal to
I=v/r
=24/6
=4A