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Precautions to Be Taken While Using Electricity

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Question

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Normally we use water to extinguish fire. If the fire is sparked by an electrical short circuit, we should not use water. Why is it so ?

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Solution

The main reason is the risk of electrocution.
Water is conductive in nature and hence the electricity in the equipment could reach the extinguisher (the person dousing the fire using water) and can electrocute him/her.

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Does pure water conduct electricity? If not, what can we do to make it conduct?

Q. Read the following statements.
a. Water is the best extinguisher for fires involving inflammable materials.
b. Carbon dioxide is used to extinguish fires involving oil and petrol.
c. Water is not suitable for fires involving electrical equipment.
d. Fires caused by short-circuit should be immediately put off by sprinkling water on it.
Which alternative has the correct statements ?

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Precautions to Be Taken While Using Electricity

Standard IX Physics

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