The forbidden energy band gap in conductors, semiconductors and insulators is $E G_{1}, E G_{2} and E G_{3}$ respectively. The relation among them is

E G_{1} = E G_{2} = E G_{3}

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E G_{1} < E G_{2} < E G_{3}

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E G_{1} > E G_{2} > E G_{3}

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E G_{1} < E G_{2} > E G_{3}

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Solution

The correct option is B $E G_{1} < E G_{2} < E G_{3}$
In insulators, the forbidden energy gap is very large. In case of semiconductors, it is moderate and in conductors,the energy gap is zero.

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{E G}_{1}, {E G}_{2}

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