Search:                        
Please support my efforts by ADVERTISING!
Serving a Pleasing Blend of Yesterday, Today, and Tomorrow™

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
Electronics Illustrated

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics

Calvin & Phineas

Archive | Sitemap
kmblatt83@aol.com

Resources

Radar | AI
Cogitations
RF Museum
Videos | Pics |
Things | Logos
Radio Datashts
WJ Tech Notes
Day in History

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings

About RF Cafe
Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Windfreak Technologies Frequency Synthesizers - RF Cafe

Basic Circuit Theory
RF Cafe Quiz #19

RF Engineering Quizzes - RF Cafe WebsiteAll 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.

Quizzes from vintage electronics magazines such as Popular Electronics, Electronics-World, QST, Radio-Electronics, and Radio News were published over the years - some really simple and others not so simple. Robert P. Balin created most of the quizzes for Popular Electronics. This is a listing of all I have posted thus far.

RF Cafe Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes
Modular Components - RF Cafe

About the RF Cafe™ Website ©1996-2026

Kirt Blattenberger - RF Cafe WebmasterRF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

Webmaster: Kirt Blattenberger  |     BSEE - KB3UON - AMA92498  |  USAF Radar Technician

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com  | My Daughter's Website: EquineKingdom
Please Support My Advertisers!
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits
Alliance Test | Isotec
Crane Aerospace & Electronics (RF & Microwave) - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe

LadyBug Technologies-LBSF09A Power Sensor - RF Cafe - RF Cafe		 Maury Microwave / Boonton SGX1000 Signal Generator - RF Cafe

everythingRF RF Engineering Resources Database - RF Cafe

Transcat | Axiom Rental Equipment - 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

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel