varactor

noun 0.636

thermistor

noun 0.612

resistor

noun 0.611

thyristor

noun 0.593

arrester

noun 0.560

voltmeter

noun 0.556

circuit breaker

noun 0.555

rheostat

noun 0.532

transistor

noun 0.522

photoresistor

noun 0.520

rectifier

noun 0.520

overvoltage

noun 0.518

capacitor

noun 0.511

variometer

noun 0.510

ballast resistor

noun 0.509

voltameter

noun 0.504

isolator

noun 0.501