effective powereffective quantityeffective radiated powereffective radius of eartheffective resistanceeffective signaleffective sound pressure root mean square sound pressure sound pressureeffective sourceeffective stresseffective supplyeffective thermal resistanceeffective transmissioneffective uniteffective valueeffective voltageeffective wavelengtheffective widthefficiencyefficiency factoreffset currenteffset voltageefleftegaehfehveiaeia color codeeigenfunctioneigenvalueeigenvectoreight level codeeinstein de haas effecteirpeisaelastanceelastic forceelastomerelastooptical effectelectic lampelectooptical effectelectoronic tuning sensitivityelectretelectret microphoneelectrformingelectricelectric arc arcelectric chargeelectric circuitelectric conduction