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Question
Four light bulbs P, Q, R, S are connected in a circuit of unknown arrangement. When each bulb is removed one at a time and replaced, the following behavior is observed.
| P | Q | R | S | |
| P removed | * | on | on | on |
| Q removed | on | * | on | off |
| R removed | off | off | * | off |
| S removed | on | off | on | * |
Draw the circuit diagram for these bulbs.
Diagram
Solution
shaalaa.com
Energy and Power in Electrical Circuits
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