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What are the internal resistance and voltage rating of a 420 Watt automatic washing machine that draws 1.75 Ampere?

Respuesta :

asuwafohjames

The internal resistance of the washing amchine is 137.14 Ω.

What is internal resistance?

Internal resistance is the inherent resistance of a conductor.

To calculate the internal resistance of the washing machine, we use the formula below.

Formula:

  • P = I²R................... Equation 1

Where:

  • P = Power of the washing machine
  • I = Current
  • R = Internal  Resistance of the washing machine.

Make R the subject of the equation

  • R = P/I²................ Equation 2

From the question,

Given:

  • I = 420 W
  • R = 1.75  A

Substitute the these values into equation 2

  • R = 420/1.75²
  • R = 137.14 Ω

Hence, the internal resistance of the washing amchine is 137.14 Ω.

Learn more about internal resistance here: https://brainly.com/question/20595977

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