38) The behavior of Ge as a semi conductor is due to the width of

conduction band being small and narrow

forbidden band being small and narrow

conduction band being large

forbidden band being large

Answer is:

forbidden band being small and narrow

Explanation:

The behavior of Ge as a semi conductor is due to the width of forbidden band being small and narrow

modulator

rectifier

amplifier

oscillator

Answer is:

Explanation:

P-N junction can be used as rectifier

tetravalent

pentavalent

monovalent

trivalent

Answer is:

Explanation:

To provide the abundance of holes the impurity added should be trivalent

Neither P - type nor N - type crystal

N - type crystal

Either P -type or N - type crystal

P - type crystal

Answer is:

Explanation:

For forward biasing a P-N junction the positive terminal of the battery is connected to p type

Answer is:

Explanation:

The number of junctions in a transistor is/are 2