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Question

In case of a fire, before the firemen use the water hoses to throw water to douse fire, they shut off the electricity supply for the area. Explain why this is done. 


Solution

As impure water is a good cinductor of electricity.  if the main electrial supply is kept on ,there are chances that the water may spill over it and the chance to get an electric shock increases.also in a commercial builsing many people run during the fire so they may fall over the electriity conducting water and get an tremendous electric shock.

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