SELECT * FROM question_mgmt as q WHERE id=6676 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=12 AND subId=16 AND chapterId=377 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 8th science Chemical Effects of Electric Current in case of a fire before the firemen use the wate

Question:

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.

Answer:

Because water is a good conductor of electricity. Hence, a fireman may get an electric shock. So, in order to prevent from the electric shock they first shuts off the main electrical supply of that area.


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  • Answered by Ekta Mehta
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