Three identical filament lamps W, X and Y are connected in the circuit as shown. The cell has negligible internal resistance. W When the switch is closed, all the lamps light. Which of the following correctly describes what happens to the brightness of lamp W and lamp Y when the switch is opened? Lamp W Lamp Y А. decreases decreases В. increases decreases С. decreases inereases D. increases increases O 0 O C

Three identical filament lamps W, X and Y are connected in the circuit as shown. The cell has negligible internal resistance. W When the switch is closed, all the lamps light. Which of the following correctly describes what happens to the brightness of lamp W and lamp Y when the switch is opened? Lamp W Lamp Y А. decreases decreases В. increases decreases С. decreases inereases D. increases increases O 0 O C

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Three identical filament lamps W, X and Y are connected in the circuit as shown. The cell has negligible
internal resistance.
When the switch is closed, all the lamps light. Which of the following correctly describes what happens
to the brightness of lamp W and lamp Y when the switch is opened?
Lamp W
Lamp Y
А.
decreases
decreases
в.
increases
decreases
С.
decreases
increases
D.
increases
increases
A
近
O O O O

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