A semiconductor has ………… temperature coefficient of resistance.

The most commonly used semiconductor is ………..

A semiconductor has generally ……………… valence electrons.

When a pure semiconductor is heated, its resistance …………..

When a pentavalent impurity is added to a pure semiconductor, it becomes ………

Addition of pentavalent impurity to a semiconductor creates many ……..

A pentavalent impurity has ………. Valence electrons

A trivalent impurity has ….. valence electrons

Addition of trivalent impurity to a semiconductor creates many ……..

A hole and electron in close proximity would tend to ……….

In a semiconductor, current conduction is due to ……..

The random motion of holes and free electrons due to thermal agitation is called ……….

A forward biased pn junction diode has a resistance of the order of

The battery connections required to forward bias a pn junction are ……

The barrier voltage at a pn junction for germanium is about ………

A reverse bias pn junction has …………

A pn junction acts as a ……….

The leakage current across a pn junction is due to …………..

With forward bias to a pn junction , the width of depletion layer ………

At room temperature, an intrinsic silicon crystal acts approximately as ……

Under normal conditions a diode conducts current when it is ……………

A semiconductor in its purest form is called.......

An intrinsic semiconductor at absolute zero.........

A semiconductor has.... temperature co-efficient of resistance.