A 25-W light bulb is turned on. It has an operating voltage of 120 V. (a) How much current flows through the bulb? A (b) What is the resistance of the bulb? Ω (c) How much energy is used each second? J each second

A 25-W light bulb is turned on. It has an operating voltage of 120 V. (a) How much current flows through the bulb? A (b) What is the resistance of the bulb? Ω (c) How much energy is used each second? J each second

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter18: Direct-Current Circuits

Section: Chapter Questions

Problem 50AP: Three 60.0-W, 120-V lightbulbs are connected across a 120-V power source, as shown in Figure P18.50....

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Question

A 25-W light bulb is turned on. It has an operating voltage of 120 V.

(a) How much current flows through the bulb?
A

(b) What is the resistance of the bulb?
Ω

(c) How much energy is used each second?
J each second

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