5. In every energy transformation or transfer, some energy is transformed into these forms of unusable or wasted energy A. chemical and sound B. Thermal and sound C. Electrical and sound

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z