Question

according to the diagram the equivalent resistance between points A and C is

Answer 1

correct option = b ( 1 ohm. )

Explanation..

R = 1 + 1 = 2 ohm. ( upper part is connected in series )..

R = 1 + 1 = 2 ohm. ( Lower part is also connected in series )..

1 / R + 1 / R = 1 / 2 + 1 /2 = 2 /2 = 1 ohm. ( They are parallel )..

Total Resistance = 1 ohm. ans.

Answer 2

correct option is (b) .
resistance in series 1st = 1+1=2
" " " 2nd=1+1=2
then these resistance are intrcnctd in parallel
so resistance in parallel
1/2+1/2=2/2=1