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
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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.
Expert Solution
Step 1
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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