Question

When does a torch bulb light up​

Answer 1

Explanation:

A torch is a portable electric lamp which uses two (or more) cells to light a small bulb. A torch is used to provide light when going out during a dark night or when electricity supply fails at home. The torch has a bulb that lights up when it is switched on.

Answer 2

Answer:

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A torch is a portable electric lamp which uses two (or more) cells to light a small bulb. A torch is used to provide light when going out during a dark night or when electricity supply fails at home. The torch has a bulb that lights up when it is switched on.