ac
adaptor
alternating
appliance
battery
black
bridge
buzzer
capacitor
card
chip
circuit
coil
component
computer
conversion
current
data
dc
digital
diode
dip
direct
display
electric
electronic
element
engineer
engineering
fuse
graetz
icon
inductor
industry
input
output
physics
polarity
power
rectifier
resistor
scheme
science
semiconductor
supply
symbol
technology
transformer
voltage