Search RFCafe.com                           
      More Than 17,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns


 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
 Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
RF Symbols Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits

Temwell Filters

RF Cascade Workbook 2018 by RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Windfreak Technologies Frequency Synthesizers - RF Cafe

Basic Circuit Theory
RF Cafe Quiz #19

RF Engineering Quizzes - RF CafeAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

This particular quiz tests your knowledge of basic circuit theory. Choose the best answer for the spirit of the quiz; i.e., the one that represents the newer term or the abandoned definition.

1. Which circuit law states that the sum of all currents into and out of a node equals zero?

a) Norton's Current Law

b) Chebyshev's Current Law

c) Kirchhoff's Current Law

d) Lenz's Current Law

2. How much power is dissipated by an ideal 100 pF capacitor fed by a 1 Vpk-pk sinewave at 10 MHz? Hint: Z = 1/(2πfC)

a) 12.5 mW

b) 6.28 mW

c) 1.0 mW

d) 0 mW

3. What causes a ground current loop?

a) A coil of wire

b) A open ground point

c) More than one ground potential in a circuit

d) A single ground potential in a circuit

4. What type of filter does this circuit represent?

a) Highpass

b) Lowpass

c) Bandpass

d) Bandstop

5. How many poles does the filter in Q4 have?

a) 4

b) 2

c) 1

d) 0

Operational Amplifier OpAmp Integrating6. What is the configuration of the opamp shown here?

a) Integrator

b) Differentiator

c) Divider

d) Multiplier

RF Cafe: Transformer7. What is the secondary voltage of this transformer?

a) 20 V

b) 10 V

c) 5 V

d) 2 V

8. What is the impedance of the transformer secondary in Q7?

a) 100 Ω

b) 20 Ω

c) 10 Ω

d) 4 Ω

9. In an ideal system, what is the minimum sampling rate to prevent aliasing of a signal with a

    maximum frequency of 100 kHz?

a) 1 MHz

b) 200 kHz

c) 100 kHz

d) 10 kHz

10. Which type of diode typically has the lowest forward bias voltage for a given current?

a) Gallium Arsenide (GaAs)

b) Germanium (Ge)

c) Silicon (Si)

d) Silicon Schottky

Need some help? Click here for the answers and explanations.

Windfreak Technologies Frequency Synthesizers - RF Cafe
ConductRF Phased Matched RF Cables - RF Cafe

Rigol DHO1000 Oscilloscope - RF Cafe

Innovative Power Products Cool Chip Thermal Dissipation - RF Cafe