The rms current through a light bulb is 0.472 A when the bulb is connected to a standard 120 V rms source. (a) Find the bulb's resistance. (b) Find the peak instantaneous current. (c) Find the peak instantaneous voltage. (d) Find the average electrical power used by the bulb.

The rms current through a light bulb is 0.472 A when the bulb is connected to a standard 120 V rms source. (a) Find the bulb's resistance. (b) Find the peak instantaneous current. (c) Find the peak instantaneous voltage. (d) Find the average electrical power used by the bulb.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter33: Inductors And Ac Circuits

Section: Chapter Questions

Problem 34PQ: Suppose you connect a small lightbulb across a DC power supply that has an emf of 5.0 V. You then...

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The rms current through a light bulb is 0.472 A when the bulb is connected to a standard 120 V rms source.

(a) Find the bulb's resistance.

(b) Find the peak instantaneous current.

(c) Find the peak instantaneous voltage.

(d) Find the average electrical power used by the bulb.

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