(a)       At absolute zero temperature (0 K) there are no free electrons in them.

(b)       At room temperature, the electron-hole pair in sufficient number are produced.

(c)        Electric conduction takes place via both electrons and holes.

(d)       The drift velocities of electrons and holes are different.

(e)       The drift velocity of electrons (Vdn) is greater than that of holes (Vdp).

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