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25 May, 05:33

A light bulb operating at 120 volts draws a current of 0.50 ampere for 240

seconds. The power rating of the light bulb is

W.

+1
Answers (1)
  1. 25 May, 07:05
    0
    The power rating of the light bulb is 60 W

    Explanation:

    The power rating formula is given by,

    P = I²*R

    Rewrite the formula as

    V=I*R

    R=I/V

    R = 120/0.50

    R=240

    P=I²*R

    P=0.50²*240

    P=60 W

    The power rating of the light bulb is 60 W
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