what-is-the-polarity-of-the-inductor-voltage-for-the-second-subinterval-dts-t-ts All Questions › Category: Power Electronics › what-is-the-polarity-of-the-inductor-voltage-for-the-second-subinterval-dts-t-ts 0 Vote Up Vote Down Chetan Shidling asked 5 years ago Options 01. Positive 02. Negative 1 Answers 0 Vote Up Vote Down cs answered 5 years ago Negative. Correct Since the inductor voltage is positive during the first subinterval, it must be negative during the second subinterval. Otherwise, the volt-second balance cannot occur.