Help me fast with detail explanation

G Presentation Sessi. 5 JoHeCo] EOS Actio. S zoom links E Reading li. >> The students are tasked with building a simple Wimshurst machine. After studying different materials to be used for different parts of the machine, they list their conclusions as shown. Circle the letters of all the student conclusions that describe which materials could be used to build different parts of the simple Wimshurst machine. Wood is a good material for building parts of the machine that A should be insulated. Plastic is a good material for building the Leyden jars because plastic easily holds a static electric charge. Rubber is a good material for building the disks because rubber has many free electrons moving through it. Copper is a good material for building the brushes because D copper has many free electrons moving through it. Aluminum is a good material for building the handle because E aluminum is a conductor, and eléctric charge easily moves through it. O us VI 8:06 hp

2. Describe the principle of electromagnetic induction and its importance in electrical engineering. please answer in typing format for like please don't use Al answer

1-What phrase is used when a substitution is permitted for a specific item? 2-The specifications state that all work shall be done... 3-What phrase is used when a substitution is permitted for a specific item? 4-What is the purpose of an electrical symbol? 5. Where are notations found?