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

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section25.1: Electric Current From Changing Magnetic Fields

Problem 6PP

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