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The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 180-W bulbs; lamp 3 has a 75.0-W bulb. 120 V (a) For each bulb, find the rms current. Irms, lamp 1 Irms, lamp 2 Irms, lamp 3 = = 1 (b) For each bulb, find the resistance. Rlamp 1 Rlamp 2 Rlamp 3 = = A A A 22 Ω S2 i

The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 180-W bulbs; lamp 3 has a 75.0-W bulb. 120 V (a) For each bulb, find the rms current. Irms, lamp 1 Irms, lamp 2 Irms, lamp 3 = = 1 (b) For each bulb, find the resistance. Rlamp 1 Rlamp 2 Rlamp 3 = = A A A 22 Ω S2 i

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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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**Transcription of Educational Content:** The diagram shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamp 1 and Lamp 2 each have a 180-W bulb, while Lamp 3 has a 75.0-W bulb. **Question (a): RMS Current for Each Bulb** For each bulb, find the rms current. - \( I_{\text{rms, lamp 1}} = \_\_\_ \text{ A} \) - \( I_{\text{rms, lamp 2}} = \_\_\_ \text{ A} \) - \( I_{\text{rms, lamp 3}} = \_\_\_ \text{ A} \) **Question (b): Resistance for Each Bulb** For each bulb, find the resistance. - \( R_{\text{lamp 1}} = \_\_\_ \Omega \) - \( R_{\text{lamp 2}} = \_\_\_ \Omega \) - \( R_{\text{lamp 3}} = \_\_\_ \Omega \) **Diagram Explanation:** The schematic illustrates three lamps (labeled 1, 2, and 3) connected in parallel to a power source supplying a 120-V AC (rms) voltage. An icon indicating the AC source is shown on the left, followed by the three parallel circuit paths, each containing a bulb. The bulbs are represented as lighted circles, illustrating the operational connection to the AC supply.
Transcribed Image Text:**Transcription of Educational Content:** The diagram shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamp 1 and Lamp 2 each have a 180-W bulb, while Lamp 3 has a 75.0-W bulb. **Question (a): RMS Current for Each Bulb** For each bulb, find the rms current. - \( I_{\text{rms, lamp 1}} = \_\_\_ \text{ A} \) - \( I_{\text{rms, lamp 2}} = \_\_\_ \text{ A} \) - \( I_{\text{rms, lamp 3}} = \_\_\_ \text{ A} \) **Question (b): Resistance for Each Bulb** For each bulb, find the resistance. - \( R_{\text{lamp 1}} = \_\_\_ \Omega \) - \( R_{\text{lamp 2}} = \_\_\_ \Omega \) - \( R_{\text{lamp 3}} = \_\_\_ \Omega \) **Diagram Explanation:** The schematic illustrates three lamps (labeled 1, 2, and 3) connected in parallel to a power source supplying a 120-V AC (rms) voltage. An icon indicating the AC source is shown on the left, followed by the three parallel circuit paths, each containing a bulb. The bulbs are represented as lighted circles, illustrating the operational connection to the AC supply.
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The lamps are in parallel to each other .

Lamp1 and lamp2 have power =180 w and lamp 3 has power 75 w. Voltage of the ac power supply= 120 volt.

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