Addition of pentavalent impurity to a semiconductor creates many

A pn junction acts as a ___________

At room temperature, an intrinsic silicon crystal acts approximately as

At absolute temperature, an intrinsic semiconductor has ___________

A reverse biased pn junction has resistance of the order of

A pentavalent impurity has ___________ Valence electrons

A hole and electron in close proximity would tend to ___________

The impurity level in an extrinsic semiconductor is about of pure semiconductor.