13) The voltage regulation stage in a power supply
A) is inside the transformer.
B) is located preceding the transformer's primary.
C) is connected to the input of the rectifier(s).
D) follows the filter stage.
14) A certain transistor is operated using a fixed-bias circuit and has the following values: VBB = 10 V, RB = 100 k, and RE = 0. What is the base current?
A) 9.3 mA B) 93 micro A. C) 10 mA D) 1000 A.
15) The JFET operates with a forward-biased gate-source pn junction.
16) A transistor amplifier has an input voltage of 10 mV and an output voltage of 2.48 V. The voltage gain is
17) An E-MOSFET can be used as a switch.
18) For proper operation, an n-channel E-MOSFET in conduction mode, pick the correct statement of the following?
A) VGS positive. B) VGS < VGS,th
C) VGS > VGS,th D) either positive or negative.
19) What are the majority current carriers in a pnp transistor?
A) electrons B) protons.
C) electrons and holes D) holes
20) Saturation and cutoff are operating conditions that are very useful when operating the transistor as
A) a switch. B) a current amplifier.
C) a linear amplifier. D) None of the above.
21) Another name for a diode limiter is
A) bridger. B) clipper. C) dc restorer. D) clamper.
22) If a E-MOSFET device has a threshold voltage of - 5 V, which of the following gate voltages sets the device into conduction?
A) - 10 V B) - 3 V
C) 0 V D) both 0 and - 3 V
23) In the circuit shown, What is the voltage between the gate and source?
+ 20 V
RD = 2 kΩ
ID = 6 mA
RG = 100 MΩ
RS = 1 kΩ