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प्रश्न
Why is an earth wire necessary to earth the metallic bodies of electrical appliances?
लघु उत्तरीय
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उत्तर
When the live wire comes into direct contact with the metallic case, the amount of current that passing through the user body would be large. To avoid this, it is necessary that the electric appliances are earth.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Magnetic Effects of Electric Current - Exercise 6 [पृष्ठ ३०६]
