Why are the bulbs in Figures B, C and D not lighting up? - Vidyadip

Question

Why are the bulbs in Figures B, C and D not lighting up?
Maharashtra Board Class 9 Science Solutions Chapter 3 Current Electricity 29

Maharashtra Board Class 9 Science Solutions Chapter 3 Current Electricity 29

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Answer

In B, the blue wire is broken. Hence circuit is incomplete and current does not flow. Therefore, bulb will not light up.
In C, the red wire is broken. Hence circuit is incomplete and current does not flow. Therefore, bulb will not light up.
In D, both wires are connected to the same terminal. Hence, there is no potential difference and current does not flow. Therefore, bulb will not light up.

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