• 2 voltage connected in Parallel and
reconnected in series gives less light
• Circuit breaker – device
automatically breaks due to overload
• Facilitate pulling – pull box
• Electrical metallic tubing –
resistant coating for protection of wires
• Junction box – termination and
connection
• Breaker switch – for electric
shock
• Symbols – schematic diagram
• Wiring – physical appearance
• Block diagram – linear appearance
• Load – convert electrical energy
into other form of energy
• Circuit – whole path
• Source – AC or DC
• Control – on/off; switch
• Measure resistance, ohmmeter
• Measure current, ammeter
• Measure voltage, AC voltmeter / DC voltmeter
• Measure voltage, resistance, current
– multitester or multimeter
• Electrical pliers –
cutting/holding
• Soldering iron – joing (circuit
board)
• Fuse puller, for pulling cartridge
• Mini drill – boring holes
• Desoldering pump – removing
solder iron
• Silicon diode – rectifier
• Crystal diode – detector, signal
• Light emitting diode (LED) –
lighting
• Zener diode – regulator
• Rectifier diode – convert AC to
DC
• NPN base – positive; outward
• PNP base – negative; inward
• Fusion – joining hydrogen atoms
• Tension – surface
• Fission – splitting
• Friction – rubbing
• Weatherproof socket – outdoor /
wet location
• Location plan, not included in
electrical plans for residential house
• Surface type – beyond wall
surface
• Flush type – within the wall
• Generator – mechanical
• Battery – chemical
• Transformer – magnetism
• Heat to electric energy –
thermocouple
• 1st and 2nd band – significant
digits
• Multiplier – 3rd band
• Tolerance – 4th band
• Anode, positive
• Cathode, negative
• AM, 530 KHz – 1600 Khz
• FM, 88 Mhz – 108 Mhz
• Oscillator – produce high
frequency
• Soldering flux – acid used to
clean metals
• 14 AWG light fixtures and circuit
• 12 AWG convenience outlet
• 8 AWG cable for service entrance
• SI standard of 14 AWG is 2.0 mm
• Electrical metallic tubing –
raising to either higher or lower level
• Series connected drycell –
increase amount of voltage
• Resistor – oppose, resist,
limit
• Diode – one direction, convert AC
to DC
• Insulator – no electron moving
• Capacitor – storage of charge
• Sine wave – rise and fall of AC
and voltage
• Open resistor – infinite (no
deflection)
• Erratic sound – defective volume
control
• Worn out amplifier – audio
frequency signal
• Broken antenna – main signal
• Blasted tuner – radio station
• Tuning capacitor – tuned to
different station
• Resistor – non polarize
• Transistor, Diode, Capacitor (polarize,
+ - )
• Emitter, electrode with an arrow
• Self bias, base connected to collector
• Copper – commonly used, cheapest
• Silver – best conductor
• Aluminum – better conductivity
than copper
• Busbar – for connecting high
voltage
• Western union – housing
installation
• Photoelectricity – emmission of
light
• Source – supplier of electricity
(battery, dry cell, generator)
• Load – electrical devices
• Control – switch on/off
• Path – circuit, wires
• Electrical pressure – volts
• Solid conductor – electrons free
to move
• Bigger wire less resistance
• Bend copper without kinking, expose
copper to heat
• NPN silicon base bias voltage –
0.6 volt
• Stored – memory
• Encoder – phase distortion
• Voltage divider – operating point
is almost stable
• Difference in potential – voltage
drop
• DC – series
• AC – parallel
• Binary processor – single
integrated circuit
• Cannot be recharged – primary
battery
• Wire stripper, to cut insulation
• Solder – Tin and Lead
• Forward Biased – ON Switch
• Reversed Biased – OFF Switch
• Yellow-Violet-Black-Gold, 47
ohms, 5%
• Two plates capacitor, Dielectric
• Ferric chloride, chemical used in
etching copper
• Voltage in capacitor – working
voltage
• Aluminum, metal used as heat sink