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Chemical Effects of Electric Current
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12/05/2021 11:21 am
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In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.
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12/05/2021 11:22 am
The water used in the water hoses is not pure water and is a good conductor of electricity. So, the firemen shut off the electric supply before spraying water to save themselves and other people from electrocution.