Wax nostalgic about and learn from the history of early electronics. See articles
from Popular Electronics,
published October 1954 - April 1985. All copyrights are hereby acknowledged.
I found one more electronics
quiz in a copy of my vintage Popular Electronics magazine collection. Robert P.
Balin published scores of these quizzes over the span of a couple decades. Unless
you have created a few quizzes yourself, it might seem like there is nothing to it, but
even relatively simple ones like this requires the creator to think up the problems and
then guarantee that the answers given are correct. No, it's not rocket science, but try
creating a dozen quizzes with 8 to 10 questions; it could take a while. Anywho[sic],
this Electronics Switching Quiz requires you to consider the switch positions and then
determine which lamps will turn on.
Electronic Switching Quiz
By Robert P. Balin
In the circuits shown below (1-8), the position
of each switch can cause all, one or more, or none of the lamps to light. Exactly what
happens can be completely specified by selecting one statement (A-L) from each of the
four sets of switch positions listed. Lamps are considered as "on" when lit to any degree
of brightness. Find the four statements that describe the behavior of each circuit under
all switching conditions, and insert the four letters corresponding to the applicable
statements in the spaces provided.
S1 Open; S2 Closed
A All lamps will light
B One or more will light
C No lamps will light
S1 Closed; S2 Open
D All lamps will light
E One or more will light
F No lamps will light
S1 Open; S2 Open
G All lamps will light
H One or more will light
I No lamps will light
S1 Closed; S2 Closed
J All lamps will light
K One or more will light
L No lamps will light
See answers below.
Quizzes from vintage electronics magazines such as Popular
Electronics, Electronics-World, QST, 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 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 typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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