The light bulbs are connected in series or parallel

bulbsSerParTwo identical light bulbs are connected to identical batteries in two different ways. First they are connected in series and then in parallel. In which circuit will the bulbs shine brightly? What is the ratio of the power supplied in series to the power supplied in parallel?

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Which of the bulbs will fuse?

DC1Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440V supply. Which of the bulbs will fuse?

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The Christmas Lights.

Lights The Christmas tree is decorated with a garland of light bulbs are connected in series. One bulb burns out and the new electric circuit is made without the burned light bulb. Is the light getting brighter or dimmer?

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