Question

Two resistance wires of the same material and of equal lengths and eam
diameters are first connected in series and then in parallel in an electric circuit. The ratio of her
produced in series and parallel combination would be:
(a) 1:2 (6) 2:1 (c) 1:4 (d) 4:1
(NCERT Book Question)
.
​

Answer 1

the ratio of what ??

.........

......

0_o

Answer 2

resistance in series

Rs=R+R

Rs=2R

resistance in parallel

1/Rp=2/R

Rp=R/2

Rp/Rs=1/2

Rs/Rp=2/1