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Question

Thick blocks of metals are never used as a core in the transformer because, _________.

A
it generates current
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B
it generates emf
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C
it generates heat
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D
it generates induction
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Solution

The correct option is D it generates heat
The magnetic field inside the thick metals is very large and because of that heat generated is large too. When the temperature is increased, the metal loses its magnetic property.

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