Which Power factor is taken for operation of Filament lamps? All Questions › Category: Others › Which Power factor is taken for operation of Filament lamps? 0 Vote Up Vote Down Rajasri Mundrathi Staff asked 3 years ago Options: a) Unityb) 0.5 Laggingc) 0.8 Laggingd) 0.85 Leading 1 Answers 0 Vote Up Vote Down Rajasri Mundrathi Staff answered 3 years ago The correct answer is Unity