'खाली दिलेल्या रचनासूत्रासाठी आय.यू. पंक नावे लिहा :\(\text{CH}_3\text{CH}_2\text{CH}2\text{CH}\text{(Cl)}\text{CH$$3'}\)
Study the entries in the following table and rewrite them by putting the connected items in the single row: 
Draw a neat labelled diagram of electric motor and write its principle. 