A researcher is studying the efficiency of a power transformer. She observes that the output power is greater than the input power. What is the likely cause of this phenomenon?
Q1. A researcher is studying the efficiency of a power transformer. She observes that the output power is greater than the input power. What is the likely cause of this phenomenon?
Answer: Transformer action
Explanation: A transformer can increase output power while maintaining efficiency due to its ability to handle AC signals.