Question

Find the power wasted in the transmission cables of resistances 0.05 ohm when 10 kW
is transmitted at 200 volts -
(A) 0.0125 kW
(B) 0.125 kW
(C) 25 kW
(D) 37.5 kW
Plz give step by step explanation

Answer 1

Answer:

(B) 0.125 kW

Explanation:

I=P/V ( AS P=V*I)

I=10000/200=50A

P ALSO EQUALS TO I^2*R

SO, P=I^2*R

P=50*50*0.05

P=125W

P=0.125kW

DONE!!

Answer 2

Answer:

Option (B) 0.125 kW power wasted in the transmission cables.

Explanation:

The resistance exists as a measurement of the opposition to current flow in an electrical circuit. The resistance exists measured in ohms, represented by the Greek letter omega (Ω). Ohms stand named after Georg Simon Ohm (1784-1854), a German physicist who investigated the relationship between voltage, current, and resistance. An electric current flows when electrons move via a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This creates it more problematic for the current to flow and causes resistance.

I=P/V ( AS P=V*I)

I=1Z000/200=50A

$P = I^2R$

$P=50*50*0.05$

P=125W

P=0.125kW

Hence, Option (B) 0.125 kW power wasted in the transmission cables.

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