A 120-watt light bulb has a resistance of 30 Ω. What current will run through the light bulb when it is turned on?     a. 5.0 A   b. 2.0 A   c. 3.0 A   d. 1.0 A   e. 4.0 A

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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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  1. A 120-watt light bulb has a resistance of 30 Ω. What current will run through the light bulb when it is turned on?

     

      a.

    5.0 A

      b.

    2.0 A

      c.

    3.0 A

      d.

    1.0 A

      e.

    4.0 A

Expert Solution
Step 1

Given, 

P=120 W

=30 Ω 

We have to find the current that will run through the light bulb, when it is turned on.

Let's see how we find it :

steps

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