DGVCL Exam Paper (12-06-2016)
A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?
In step up votlage, Output votlage > Input votlage Output current < Input current
In step down transformer Output votlage < Input votlage Output current > Input current. Power and frequency remains almost constant in stepup or stepdown transformer.
EXAMIANS