Question

If 2.2 kW power is transmitted through a 5 ohm line , then power loss in the form if heat is

120W
20W
1.2W
12W​

Answer 1

Answer:

Given,

P=2.2kW

R=10Ω

V=22kV

For power transmission, power loss in the line,

P

L

=i

2

R. . . . . . . (1)

Transmitted power, P=iV

i=

V

P

Now, equation (1) becomes,

P

L

=

V

2

P

2

R

P

L

=

22×22×10

6

2.2×2.2×10

6

×10

P

L

=0.1W

The correct option is A.

Explanation:

follow me