Friday

April 18, 2014

April 18, 2014

Posted by **Matt Will** on Thursday, August 9, 2012 at 5:50pm.

(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

- physics 102 -
**drwls**, Friday, August 10, 2012 at 2:43amThe lamps are in parallel and all have an applied voltage of 120 V (rms)

(a) Irms = P/V

where P is the lamp power rating in Watts.

(b) V^2/R = P for each lamp

R = V^2/P = 1.44*10^4/P ohms

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