samsalman1957 samsalman1957
  • 23-05-2022
  • Engineering
contestada

A resistor is operated at 120v and rated at 1. 40 kw

Respuesta :

sp10925 sp10925
  • 02-06-2022

a) The normal operating current through the resistor is 11.67A.

b) The resistance of the resistor is 10.286 Ω.

What is resistor?

It is the essential electrical element used in the circuit to control the flow of current.

Given is the Power =1.40 x 10³ W and the voltage V=120V

a) P =VI

1.40 x 10³ = 120 x I

I = 11.67A

Thus, the current is 11.67A.

b) P =V²/R

1.40 x 10³= (120)² /R

R = 10.286 Ω

Thus, the resistance is  10.286 Ω.

Learn more about resistor.

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