Question

Calculate the power loss (using P = I2R) in a cable with resistance 500 Ω carrying a current of 20A

Answer 1

$\sf{\huge{\underline{\green{Given :-}}}}$

• A cable with resistance 500 Ω carrying a current of 20A.

$\sf{\huge{\underline{\green{To\:Find :-}}}}$

• The power loss.

$\sf{\huge{\underline{\green{Answer :-}}}}$

The power loss is defined as the loss of electric charges in carrying from input to output or in supplying from one part to another.

We know,

The power loss = voltage × current

P = V I

• V = voltage

• I = current

As we learned,

V = I R

• I = 20A

• R = 500 Ω

➝ 500 × 20

➝ 10,000 V

P = V I

➝ 10,000 × 20

➝ 2,00,000 W