Question

please solve it
refer to attactment ​

Answer 1

Answer:

25:1

Explanation:

Each part = 2R/5

When connected in series then

Req = R1 + R2 + R3 + R4 + R5

= 5R1 (since all parts are same)

=5 × 2R/5 = 2R

When connected in parallel then

1/Req = 1/R1 + 1/R2 + 1/R3 + 1/R4 + 1/R5

= 5 × 1/R1 (since all parts are same)

= 5/R1

Req = R1 /5 = (2R/5)/5 (since R1 = 2R/5)

=2R/25

So,

Req series : Req parallel = 2R : 2R/25

= 25:1