Three resistors A, B and C are connected in series to a 120-V supply. If the resistor A = 50 Ω and the voltage across B, VB = 40 V when the current is ½ A, what is the resistance of resistor C in ohms?

Three resistors A, B and C are connected in series to a 120-V supply. If the resistor A = 50 Ω and the voltage across B, VB = 40 V when the current is ½ A, what is the resistance of resistor C in ohms?

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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Question

Three resistors A, B and C are connected in series to a 120-V supply. If the resistor A = 50 Ω and
the voltage across B, VB = 40 V when the current is ½ A, what is the resistance of resistor C in
ohms?

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