Which one of the following is true about the p-type and n-type semi-conductor?

n-type semi-conductor have holes in majority.

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the concentration of electrons and holes are equal in both n-type and p-type semiconductors.

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n-type semi-conductors have free electrons in majority.

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p-type semi-conductor has excess negative charge.

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Solution

The correct option is C n-type semi-conductors have free electrons in majority.
n-type semiconductors have free electrons in majority, p-type semiconductors have holes in majority.

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Which one of the following is true about the p-type and n-type semi-conductor?

The correct option is C n-type semi-conductors have free electrons in majority.n-type semiconductors have free electrons in majority, p-type semiconductors have holes in majority.

The correct option is C n-type semi-conductors have free electrons in majority.
n-type semiconductors have free electrons in majority, p-type semiconductors have holes in majority.