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Physics WebAssign Ch21 #2
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For more Chapter 21 physics problems, see:
The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 120-W bulbs; lamp 3 has a 40.0-W bulb.
(a) For each bulb, find the rms current.
Irms, lamp 1 =_____A
Irms, lamp 2 =_____A
Irms, lamp 3 =_____A
(b) For each bulb, find the resistance.
Rlamp 1 =_____Ω
Rlamp 2 =_____Ω
Rlamp 3 =_____Ω
The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 120-W bulbs; lamp 3 has a 40.0-W bulb.
(a) For each bulb, find the rms current.
Irms, lamp 1 =_____A
Irms, lamp 2 =_____A
Irms, lamp 3 =_____A
(b) For each bulb, find the resistance.
Rlamp 1 =_____Ω
Rlamp 2 =_____Ω
Rlamp 3 =_____Ω
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