Electrical Engineering Crossword (Issue 311)

The answers to Circuit Cellar’s June 2016 electrical engineering crossword puzzle are now available.

Across

  1. BELL—Was incorrectly credited for Antonio Santi Giuseppe Meucci’s invention
  2. ZEPTO—z; 10<super>–21
  3. NOISE—Hiss
  4. FEMTO—1,000<super>–5
  5. MICROCODE—Firmware
  6. AMORPHOUS—Silicon used in LCDs and solar cells
  7. PLASMA—”Anything formed”
  8. VELOCITY—m/s
  9. TACHOMETER—Measures a shaft’s rate of revolution

Down

  1. VOLT—Potential energy/charge
  2. THOMSON—Discovered electron in 1896
  3. ELECTROSCOPE—A “gold-leaf” apparatus used to detect electric charge
  4. BUTTERWORTH—BT filter
  5. MODIFICATION—Mod
  6. BOLTZMANN—Constant, k <sub> B
  7. MIXEDSIGNAL—IC with digital and analog circuits [2 words]
  8. PYRAMID—Volume: 1/3Bh, where B is the base’s area and h is height
  9. ELECTRON—E <super> –
  10. PLACEMENT—The step before routing in PCB design
  11. BOHR—Danish physicist (1885–1962), atomic structure, quantum theory

 

Electrical Engineering Crossword (Issue 310)

The answers to Circuit Cellar’s May 2016 electrical engineering crossword puzzle are now available.

Across

  1. ASSEMBLY—ASM
  2. TRANSDUCER—Sensor, passive, active, actuator
  3. LOGICGATE—XOR, NOR, AND, OR [two words]
  4. KILBY—Physics Noble Prize in 2000
  5. ZUSE—German engineer; Turing-Complete Z3
  6. SOLDERMASK—Layer atop copper foil
  7. PETABYTE—1 Exabyte is 1,024 of these
  8. PHOTODIODE—Converts light to current
  9. BOLD—<b>
  10. SIGNIFICAND—Coefficient, mantissa

Down

  1. INFRARED—IR
  2. HYPERSONIC—> Mach 5
  3. FERMI—Chicago Pile-1, induced radioactivity, Los Alamos
  4. MERCURY—Hg, Atomic number 80
  5. CODEC—Code decoder
  6. NORMALLYOPEN—NO [two words]
  7. LITZ—Wire for AC
  8. TOUCH—Haptics
  9. SWITCH—Breaks a circuit

16.        PERIODIC—Regular intervals

 

Electrical Engineering Crossword (Issue 309)

The answers to Circuit Cellar’s April 2016 electrical engineering crossword puzzle are now available.

Across

  1. STASIS—Inactive
  2. DIODE—Current flows through it in one direction
  3. HEAT—BTUs; joules
  4. BUS—LIN
  5. CLI—Text shell
  6. BINARY—Offs and Ons
  7. BUFFER—Location to hold data temporarily
  8. ASIC—The opposite of a general-purpose IC
  9. PENTODE—Five-terminal transistor
  10. ISOTROPIC—Equal in all ways or directions
  11. HENRY—Inductance

Down

  1. GAUSS—G
  2. TESLA—Flux density
  3. DECIBEL—One-tenth Bel
  4. CURRENT—I
  5. EMITTER—Base, collector, and what?
  6. ATARI—Yars’ Revenge, Q*bert
  7. PHASE—Relationship between current and voltage
  8. TOP—Upper frequency range
  9. CHILD—UNIX directory below Parent

 

Electrical Engineering Crossword (Issue 308)

The answers to Circuit Cellar’s March 2016 electrical engineering crossword puzzle are now available.

Across

  1. PEERTOPEER—P2P
  2. MICROMETER—Device for measuring a small object’s thickness
  3. TRACE—Conductive line
  4. VHF—Between 30 and 300 MHz
  5. TERA—10 to the 12
  6. APERIODIC—Irregular
  7. ATARI—Company Bushnell founded in 1972
  8. SHORT—Messaging service
  9. NODE—Circuit junction
  10. GENERATOR—Electromechanical transducing device that uses rotational energy to produce electricity

Down

  1. PISO—74HC166
  2. BOM—List of sources
  3. SOCKET—ZIF
  4. RECTIFIER—Passes current one way
  5. DECIBEL—The smallest perceptible volume change to the average person
  6. NONVOLATILE—Stores data without an external power source
  7. FLOWRATE—Fluid velocity
  8. NTSC—Analog TV
  9. DELTA—Temperature difference
  10. PERIOD—“T” in T = 1/f

Electrical Engineering Crossword (Issue 305)

The answers to Circuit Cellar’s December 2015 electrical engineering crossword puzzle are now available.305-grid-(key)

Across

  1. RADIAN—Rad
  2. SIEMENS—1/ohm
  3. VECTOR—Has magnitude and direction
  4. REPEATER—Acquires and retransmits signals
  5. INTERFERENCE—Distortion
  6. PINS—GND, VCC, SCK, SDA
  7. HORSEPOWER—746 W
  8. DOUGHNUT—Torus
  9. SCALAR—No direction, but has magnitude

Down

  1. BERYLLIUMOXIDE—BeO
  2. MONOPHONIC—Mono
  3. USEREXPERIENCE—UX
  4. PRIME—23, 149, 337
  5. TESLA—Wardenclyffe Tower
  6. CONTACT—Part of a switch that opens and closes a circuit
  7. MICROVOLT—10 sup -6 V
  8. RMS—Quadratic mean
  9. GOOGOL—10 super 100
  10. QUINT—Five

Electrical Engineering Crossword (Issue 304)

The answers to Circuit Cellar’s November 2015 electrical engineering crossword puzzle are now available.304-empty-grid-(key)

Across

  1. DRYCELL—A battery cell with a paste electrolyte (two words)
  2. RAIL—Part of a power supply that has the highest voltage or current-delivery capability
  3. DECADE—10 consecutive units
  4. TELSA—Flex density unit
  5. LOGARITHM—Computational system based on powers of 10
  6. PEAK—Brief increase in signal energy
  7. SHUNT—To bypass
  8. SIBILANCE—Vocal sound
  9. INFRASONIC—Range of sound frequencies below 20 Hz

Down

  1. PASCAL—1 newton/cm2
  2. XTAL—Crystal
  3. REACTANCE—X
  4. GATE—Automatic control circuit that sets the threshold level at which a dynamic processor starts to take effect
  5. ZERO—Null
  6. DRIFT—Shift of circuit parameters away from optimum settings
  7. TANGENT—Straight line that touches a circle at a single point
  8. CORE—Hub around which the windings of a transformer or inductor are wrapped
  9. EMITTER—Region of a bipolar transistor into which electrons are introduced to the semiconductor material
  10. UNIPIVOT—Single pivot
  11. NANO—1,000,000,000

Electrical Engineering Crossword (Issue 303)

The answers to Circuit Cellar’s October 2015 electrical engineering crossword puzzle are now available.303 crossword grid (key)

Across

  1. QUANTA—Discrete particlesThe
  2. ENCLOSURE—Box
  3. DIFFRACTION—Bending of energy waves
  4. BINARY—Offs and ons
  5. GANGED—Physically coupled to work in unison
  6. TETRODE—Vacuum tube with a plate, control grid, screen grid, and cathode
  7. INDUCTOR—Coil
  8. HOMEBREW—DIY
  9. POLE—Point of maximum electrical polarity
  10. FLOWCHART—Depicts a sequence of operations
  11. POWEROVERETHERNET—POE

Down

  1. PASCAL—1 newton/cm2
  2. PROPAGATION—Dissemination of energy
  3. FEMTO—One quadrillionth
  4. NICAD—Rechargeable battery
  5. ANGSTROM—10–4 micrometer
  6. RECTIFIER—Diode used to convert AC to DC
  7. PARITY—Equal to
  8. HARDWIRED—Soldered permanently
  9. DEMODULATOR—Circuit that extracts modulations from an RF signal
  10. ANTIPHASE—180° out of phase

Electrical Engineering Crossword (Issue 302)

The answers to Circuit Cellar’s September 2015 electrical engineering crossword puzzle are now available.

Across302 puzzle (key)

  1. DAMP—Decrease amplitude
  2. LUX—Light intensity
  3. PLANCK—Quantum theory
  4. ASIMOV—The Great Explainer
  5. CAPACITOR—Leyden jar
  6. GALVANOMETER—Measures small electrical currents by means of deflecting magnetic coils
  7. FERROUS—Metal containing iron
  8. IBM—Big Blue
  9. EXAWATT—EW
  10. SPEEDOFLIGHT—˜3.00×10 super 8 m/s

Down

  1. ENUMERATION—ENUM
  2. GALLIUMARSENIDE—GaAs
  3. LORENTZFORCE—F = qE + qv × B
  4. PACKET—Chunk of data
  5. APPLE—Introduced the LISA computer in 1983
  6. PETABYTE—1 quadrillion bytes
  7. VHF—Range = 30 and 300 MH
  8. CRC—Error-detecting code
  9. BAT—Batch file
  10. TQFP—Thinner than QFP

Electrical Engineering Crossword (Issue 301)

The answers to Circuit Cellar’s August 2015 electrical engineering crossword puzzle are now available.301 crosswordgrid

Across

  1. EXTENSIBLE—X
  2. NODE—Point of minimum amplitude
  3. AVOGADRO—6.0221415×1023 atoms/mole?
  4. DECODE—Covert a digital signal back to an analog signal
  5. ROGERS—Founded MIT in 186
  6. STATOR—Non-rotating part of an electric motor
  7. NIBBLE—A half-byte
  8. DENSITY—M/V
  9. TETRODE—Vacuum tube with four elements
  10. FILTERSLOPE—The steepness or severity of a filter’s attenuation [two words]
  11. OMNIDIRECTIONAL—Uniform propagation of energy in all directions

Down

  1. BITERROR—The loss of a single bit in a digital word [two words]
  2. KLUDGE—Poor solution
  3. BIDIRECTIONAL—A figure-eight polar pattern
  4. HANDSHAKE—Signal exchange to start or finish a function
  5. TRACE—A line of conductive material on a PCB
  6. JFET—FET in which the gate consists of a p-n junction
  7. YOTTA—1,000,000,000,000,000,000,000,000
  8. NINE—Nonet
  9. NTSC—Analog television system
  10. DELIMIT—Set limits
  11. IRON—Fe

Electrical Engineering Crossword (Issue 300)

The answers to Circuit Cellar’s July 2015 electrical engineering crossword puzzle are now available.300grid (key)

Across

  1. ABAMPERE—abA; Biot
  2. COULOMB—6.28 x 1018 electrons
  3. VOLTA—19th-century physicist credited with inventing the first battery
  4. NEGATIVE—Anion charge
  5. ZERO—False value
  6. MEGABAUD—1,000 kBd
  7. MANTISSA—Significand
  8. EULER—e (italicized); Leonhard
  9. MOTE—Sensor node
  10. EXCIMER—“Excited dimer”, laser

Down

  1. DRAM—Robert Dennard, IBM, 1967
  2. APOLLO—“Guidance Computer” invented in 1966 at The Charles Start Draper Laboratory for spacecraft navigation and control
  3. PICO—1,000–4
  4. LILIENFELD—Patented the FET in 1925
  5. RESISTANCE—V/I
  6. FORTRAN—Scientific programming language developed in the 1950s by John Backus and IBM
  7. FLIPFLOP—Two stable states; latch
  8. EXA—10 super 18
  9. FLUX—Unijunction can be used to measure this
  10. DECI—1,000–1/3

Electrical Engineering Crossword (Issue 299)

The answers to Circuit Cellar’s June 2015 electrical engineering crossword puzzle are now available. 299-Grid-(key)

Across

  1. CURRENT—Eddy
  2. LUMEN—A lux is one per square meter
  3. KILBY—Nobel prize for physics in 2000
  4. EXABIT—1,000,000,000,000,000,000 bits
  5. ARITY—Programming term for the number of arguments or operands a function or operator takes
  6. PION—Pi meson
  7. STATOHM—Five of these equals approximately 4.5 × 1012 ?
  8. LIN—Bus system for automotive networks
  9. PATCH—Supplemental software as a fix
  10. BITERROR—Incorrect reading of a bit [2 words]

Down

  1. XTAL—Crystal
  2. MINIMA—Lowest point in the domain of a function
  3. FLEMING—Electrical engineer (1849–1945) who designed the thermionic valve
  4. HERTZ—Cycles/second
  5. BAT—BATCH FILE
  6. TRIVALENT—A valence of 3
  7. ANECHOIC—Absent of sound
  8. FILTER—Blocks or allows to pass
  9. GND—Ground
  10. ACID—pH < 7

Electrical Engineering Crossword (Issue 298)

The answers to Circuit Cellar’s May 2015 electrical engineering crossword puzzle are now available.298-crossword-grid-(key)

Across

  1. ATTOSECOND—10-18 of a second
  2. SHIELDING—A barrier of conductive or magnetic matter
  3. HAPTIC—Relating to touch
  4. BEAMFORMING—Signal processing for sensor arrays
  5. SCRIPT—A sequence, instructions
  6. TRIMPOT—A small potentiometer used for making preset adjustments in a circuit
  7. LUX—Light intensity
  8. DEMAGNETIZE—Degauss
  9. XENON—Xe
  10. COAXIAL—Sharing the same axis
  11. DECIBEL—0.1 bel

Down

  1. CENTIMETER—0.3937 inches
  2. CATWHISKER—Flexible sharp wire that connects to a semiconductor crystal’s surface [two words]
  3. FEMTO—0.000000000000001
  4. SUBSONIC—Less than 15 Hz
  5. IMPULSE—An abrupt burst of signal energy
  6. ALTERNATOR—Mechanically driven generator of AC electricity
  7. HOMEBREW—DIY, homemade
  8. AMPHOUR—Current flow over time
  9. BAUD—200 bits per second = 200 what?

Electrical Engineering Crossword (Issue 297)

The answers to Circuit Cellar’s April 2015 electrical engineering crossword puzzle are now available.297-puzzle-(key)

Across

  1. RELAY—A switch actuated by another electrical signal
  2. OFFSET—A permanent deviation from the design center of any device or circuit
  3. DIP—A component for a PCB use that has pins arranged in two parallel rows
  4. DECIBEL—1/10th of a Bel
  5. ENCODE—Convert analog information to digital data
  6. DAMP—Suppress a resonance by absorbing stored energy through the application of mechanical or electrical friction
  7. DELIMIT—To define or set limits on the boundaries of something
  8. LOOP—Two electrically conductive paths carrying the same signal
  9. CHARGE—State of having a stored excess or deficiency of electrons, which imparts electrostatic polarity to a capacitor or object
  10. DECIMALS—10.1 mal equals 10 what?
  11. OVERSHOOT—The tendency for a rapidly increasing or decreasing electrical impulse to exceed momentarily its actual peak level

Down

  1. CENTIMETER—0.3937 inches
  2. COAXIAL—Sharing the same axis
  3. FIELD—A volume of space through which any radiated energy is distributed
  4. DETECTOR—A circuit that extracts the modulations from a carrier
  5. CELL—An electrochemical unit for producing DC electricity
  6. CARDIOID—Heart-shaped
  7. PATCH—Reroute a signal to a different circuit
  8. JOULE—An “erg” is a unit of work equal to 1–7 of these
  9. FRAME—A digital signal comprises a series of these

Electrical Engineering Crossword (Issue 295)

The answers to Circuit Cellar’s February 2015 electrical engineering crossword puzzle are now available.295puzzle

Across

2. COMMON—A connection or conductor that a number of circuits share
5. TRIODE—Comprises a cathode, plate, and control grid
6. SKINEFFECT—The tendency for electrons at high frequencies to travel along the surface of a conductor [two words]
7. IBM—Big Blue
9. PASCAL—Pa
10. SHEATH—Tube that protects a bundle of wires
15. AVOGADRO—6.0221415 × 1023 atoms/mole
17. CONDENSER—A capacitor
18. MEGA—M
19. QFACTOR—Measures the damping of resonator modes

Down

1. BIDIRECTIONAL—Figure-8
3. OSCILLATION—Self-sustaining generation of a continuous electrical signal
4. SELFBIAS—Cathode bias [two words]
8. MANCHESTER—In this code, common in telecommunications, each bit of data is represented by at least one voltage level transition.
11. WIREWOUND—WW
12. TANGENT—Straight line that touches a circuit a single point
13. MALE—Hot signal connector
14. FERROUS—Containing iron
16. OHMSLAW—R = V/I [two words]
17. CBAR—0.01 bar

Electrical Engineering Crossword (Issue 294)

The answers to Circuit Cellar’s January 2015 electronics engineering crossword puzzle are now available.294-crossword-(key)

Across

  1. SHIELD—Conductive cover that isolates equipment from electromagnetic interference
  2. TRIMPOT—SMALL POTENTIOMETER FOR MAKING PREDETERMINED MODIFICATIONS IN A CIRCUIT
  3. NINE—A nonet is a grouping of what?
  4. LIMITER—A device that prevents signal peaks from exceeding max levels
  5. HERTZ—One cycle per second.
  6. DIP—Dual inline package
  7. QUALITYCONTROL—QC
  8. MOCKUP—Non-working model of a system
  9. PETABYTE—1 quadrillion bytes
  10. PATCH—Reroute a signal to a different circuit
  11. RF—Electromagnetic signals with frequency > 70 kHz

Down

  1. SMOOTHINGCIRCUIT—A filter for removing spurious noise from a power supply
  2. EXTENSIBLE—“X”
  3. POINTSOURCE—Small energy source that has no effect on its directivity
  4. SHUNT—Component that bypasses another component
  5. GERMANIUM—Semiconductor material used in solid-state diodes and photocells
  6. DAMP—Suppress resonance
  7. DYNE—10 micronewtons
  8. CBAR—0.01 bar
  9. ERG—10–7 joules