A station must deliver through overhead cables whose total resistance is

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

A station must deliver

P = 200\,\text{kW}

through overhead cables whose total resistance is

5\,\Omega

. If the power is sent at

10\,\text{kV}

or at

100\,\text{kV}

, what is the ratio of line power loss

P_{\text{loss,10 kV}} : P_{\text{loss,100 kV}}

? (a)

10:1

(b)

100:1

(c)

1:100

(d)

1:10