BJT DEVICES

Calculate minority current ICO if IC = 20.002 mA and IC majority = 20 mA.

• 20 uA

• 0.002uA

• 2nA

• 2uA

βdc for this set of collector characteristics is within ________ percent of βac.

• 2

• 5

• 7

• 10

Use this table of collector characteristics to calculate βac at VCE = 15 V and IB = 30 μA.

• 100

• 106

• 50

• 400

Calculate βac for IC = 15 mA and VCE = 5 V.

• 200

• 180

• 220

• none of the above

For a properly biased pnp transistor, let IC = 10 mA and IE = 10.2 mA. What is the level of IB?

• 0.2 A

• 200mA

• 200uA

• 20.2ma

Calculate βdc at VCE = 15 V and IB = 30 μA.

• 100

• 106

• 50

• 110

Transistors are ________-terminal devices.

• 2

• 3

• 4

• 5

For a properly biased pnp transistor, let IC = 10 mA and IE = 10.2 mA. What is the level of IB?

How many layers of material does a transistor have?

• 1

• 2

• 3

• 4

What is (are) the component(s) of electrical characteristics on the specification sheets?

• On

• Off

• Small-signal characteristics

• All of the above