ANS:C - 3-4

Silicon percentage in the silicon steel used for electrical appliances/equipment is typically 3-4%. Silicon steel, also known as electrical steel or transformer steel, is a specialized type of steel alloyed with silicon to improve its magnetic properties. The addition of silicon reduces eddy current losses and increases electrical resistivity, making it ideal for applications in electrical equipment such as transformers, motors, and generators. While the exact silicon content may vary depending on the specific application and manufacturer, the typical range for silicon steel used in electrical appliances/equipment is around 3-4%.