In a valence crystal, the valence electrons

Electronics and Communication Engineering (ECE) : Materials and Components - Quiz(MCQ)

are not shared

are shared by all atoms

are shared between neighbouring atoms

Any of the above

Correct Answer : Option (C) : are shared between neighbouring atoms

Explanation : In true valence crystals the binding between the atoms is accomplished by the sharing of valence electrons.

This sharing can only be between neighbouring atoms only.

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Magnetic hysteresis phenomenon is explained by

domain rotation

motion of domain walls

motion of domain walls and domain rotation

None of the above

Correct Answer : motion of domain walls and domain rotation

A circular sphere mile is the area of cross-section of a wire

having a radius equal to 1 miles

having a circumference equal to 1 miles

having a circumference equal to 0 miles

having a diameter equal to 1 miles

Correct Answer : having a diameter equal to 1 miles

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air

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Correct Answer : air

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