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Question

Hi, could anyone help explain why the ans is option 1? I thought that electricity couldn’t flow through bulb U either since the wire is only connected to the metal casing and not the tip of U. So I was wondering why the ans is not option 4?

Answer

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What does it mean that bulb V is “fused”?  I am confused.

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Thank you!

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Option  (1).

If bulb V is fused, Bulb S,T,U will still be connected in series in a complete circuit, but notice how Bulb U is not connected properly for it to light up.

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