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Grade: 10
        
The circuit shown has 3 identical light bulbs A, B, C
and 2 identical batteries E1, E2 . When the switch is
open, A and B glow with equal brightness. When the
switch is closed:
(A) A and B will maintain their brightness and C will be
dimmer than A and B.
(B) A and B will become dimmer and C will be brighter
than A and B.
(C) A and B will maintain their brightness and C will not
glow.
(D) A, B and C will be equally bright.
4 years ago

Answers : (1)

Vijay Mukati
askIITians Faculty
2590 Points
							Option C. Replace the given the bulbs in the given circuit by resistance of equal values and try to solve the network. You will find that the current flowing though blub C comes out to be zero. Thanks.
						
4 years ago
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Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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