May 1962 Popular Electronics
Table of Contents
Wax nostalgic about and learn from the history of early electronics. See articles
published October 1954 - April 1985. All copyrights are hereby acknowledged.
Back in the 1960s, Robert Balin created many quizzes on various electronics topics for Popular Electronics magazine. I have already posted a couple dozen of them. Here is the latest one on the subject of Units of Measure commonly found in electronics work. I missed the one for the tape deck, but then I don't ever remember concerning myself with the electrical and magnetic characteristics of tape decks.
Electronic Unit Quiz
By Robert P. Balin
Electronic devices have their sensitivity and operating ratings given in units that describe their most important characteristics. See if you can match the 9 electronic units listed below with the sketches (A through I).
1 Ohms per volt ___
2 Inches per second ___
3 Micromicrofarads per foot ___
4 Microvolts per meter ___
5 Cycles per second ___
6 Gilberts per centimeter ___
7 Volts per inch ___
8 Revolutions per minute ___
9 Volts per mil ___
See answers below.
Popular Electronics published many quizzes over the years
- some really simple and others not so simple. Robert Balin created many of the quizzes.
This is a listing of all I have posted thus far.
- A Baffling Quiz
- January 1968
- Electronics IQ Quiz
- May 1967
- Plug and Jack Quiz
- December 1967
Switching Quiz - October 1967
Angle Quiz - September 1967
Electronics Quiz - July 1967
- Bridge Circuit
Quiz -December 1966
- Diode Function
Quiz - August 1965
- Diagram Quiz, August
- TV Trouble Quiz,
- Electronics History Quiz,
- Scope-Trace Quiz,
Circuit Analogy Quiz, April 1973
Your Knowledge of Semiconductors, August 1972
- Ganged Switching
Quiz, April 1972
- Lamp Brightness
Quiz, January 1969
- Lissajous Pattern Quiz, September 1963
Quizoo, October 1962
- Electronic Photo Album Quiz, March 1963
- Electronic Alphabet Quiz, May 1963
- Quiz: Resistive?
Inductive? or Capacitive?, October 1960
- Vector-Circuit Matching Quiz, June 1970
Quiz, September 1961
- RC Circuit
Quiz, June 1963
- Diode Quiz,
- Electronic Curves Quiz, February 1963
- Electronic Numbers Quiz, December 1962
- Energy Conversion Quiz, April 1963
Function Quiz, June 1962
Quiz - February 1967
- Unknown Frequency
Quiz - September 1965
Metals Quiz - October 1964
Measurement Quiz - August 1967
- Meter-Reading Quiz,
Geometry Quiz, January 1965
Factor Quiz, November 1966
Math Quiz, November 1965
- Series Circuit Quiz,
Quiz, March 1966
- Electronic Analogy
Quiz, November 1961
Coupling Quiz, August 1973
- Electronics Analogy Quiz, August 1960
- Audio Quiz,
Unit Quiz, May 1962
Capacitor Circuit Quiz, June 1968
- Quiz on AC Circuit Theory, December 1970
- Magnetic Phenomena Quiz, February 1962
- Electronics Geography Quiz, April 1970
Electronic Menu Quiz, August 1963
- Electronic Noise Quiz, August 1962
- Electronic Current Quiz, October 1963
- Electronic Inventors Quiz, November 1963
Function Quiz, January 1962
- Electronic Measurement Quiz, January 1963
Tube Quiz, February 1961
- Kool-Keeping Kwiz, June
- Find the
Brightest Bulb Quiz, April 1960
Electronic Unit Quiz Answers
1 - (G) The deflection sensitivity of a basic meter movement is given in ohms per volt, which is the reciprocal of the current required to produce full scale deflection of the meter.
2 - (I) The speed at which the tape passes the recording and playback heads in a tape recorder is usually 7 1/2 or 3 3/4 inches per seconds (ips).
3 - (F) The conductor and metallic braid of a shielded cable form a capacitor, with the insulating material between them acting as the dielectric. When the µµf. per foot and the length of a cable are known, its total capacitive effect can be determined.
4 - (E) The strength of a received signal is measured in microvolts per meter - the dielectric stress existing between two points in the wave front 1 meter apart and lying on a line parallel to the electric lines of force.
5 - (H) The precise and stable frequency of vibration of a tuning fork given in cycles per second is often used as a reference frequency in electronic testing.
6 - (B) The amount of magnetizing force required to produce a magnet of a given strength is measured in gilberts, or ampere turns, per centimeter length of the magnetic circuit. One gilbert per centimeter is called an "oersted."
7 - (A) The deflection sensitivity of an oscilloscope is specified by giving the amount of input voltage required to produce a one inch peak-to-peak deflection on the cathode-ray tube screen.
8 - (C) Phonograph turntable speeds used today are 16 2/3, 33 1/3, 45, and 78 revolutions per minute.
9 - (D) The insulating ability of tape is given as the number of volts it can withstand per mil, or one-thousandth of an inch, of its thickness.
Posted July 18, 2013