Chap#17 Electronics

Question 1

In the case of a p-n junction diode, at a high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Answer 1

Critical Voltage

Question 2

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is:

Answer 2

4.9 mA

Question 3

When we apply reverse bias to a junction diode, it:

Answer 3

Raises the potential barrier

Question 4

When boron is added as an impurity to silicon, the resulting material is:

Answer 4

p-type semiconductor

Question 5

A p-n junction has a thickness of the order of:

Answer 5

10^-6 cm

Question 6

The part of a transistor which is heavily doped to produce large number of majority carriers is:

Answer 6

Emitter

Question 7

When the n-type of semiconductor is heated,

Answer 7

The number of electrons and holes increases equally