Civil Engineering Mechanical Engineering Chemical Engineering Networking Database Questions Computer Science Basic Electronics Digital Electronics Electronic Devices Circuit Simulation Electrical Enigneering Engineering Mechanics Technical Drawing

# Electronic Devices - Bipolar Junction Transistors

### Exercise

"In the middle of difficulty lies opportunity."
- Albert Einstein
1.

Refer to this figure. Determine the minimum value of IB that will produce saturation.

 A. 0.25 mA B. 5.325 A C. 1.065 A D. 10.425 A

2.

A transistor amplifier has a voltage gain of 100. If the input voltage is 75 mV, the output voltage is:

 A. 1.33 V B. 7.5 V C. 13.3 V D. 15 V

3.

Refer to this figure. If VCE = 0.2 V, IC(sat) is:

 A. 0.05 mA B. 2.085 mA C. 1.065 mA D. 7.4 mA

4.

What is the ratio of IC to IB?

 A. DC B. hFE C. DC D. either DC or hFE, but not DC

5.

For normal operation of a pnp BJT, the base must be ________ with respect to the emitter and ________ with respect to the collector.

 A. positive, negative B. positive, positive C. negative, positive D. negative, negative