A lamp (R₁ = 151 2), an electric heater (R₂ = 27 2), and a fan (R3 = 51 (2) are connected in parallel across a 120 V line. (a) What total current is supplied to the circuit? A (b) What is the voltage across the fan? V (c) What is the current in the lamp? (d) What power is expended in the heater? W

A lamp (R₁ = 151 2), an electric heater (R₂ = 27 2), and a fan (R3 = 51 (2) are connected in parallel across a 120 V line. (a) What total current is supplied to the circuit? A (b) What is the voltage across the fan? V (c) What is the current in the lamp? (d) What power is expended in the heater? W

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 19PQ

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