Q136
General SciencePhysics
Which quantity is increased in step down transformer?
- a.Voltage
- b.Current
- c.Wattage
- d.Frequency
Answer: (B) Current
A step-down transformer reduces voltage while proportionally increasing current, since power (Voltage × Current) remains approximately constant (assuming ideal conditions). So if voltage halves, current doubles. Frequency is unchanged by transformers, and wattage (power) is conserved, not increased.