This document contains instructions and questions for an assignment on electrical machines. It is divided into four sections, with multiple questions in each section. Section one asks about the properties of ideal and practical transformers, differences between single and three-phase transformers, and calculations related to transformer windings. Section two involves calculations to determine equivalent circuit parameters for a transformer. Section three covers the basic principles and characteristics of DC motors and generators. Section four involves calculations to determine generated electromotive forces in different types of generators under varying conditions.