Report Writing (5 Marks)

Minimum 350 words. Drawings can be taken from web

Reference should be added. Separate mark will be given for reference

1- What motor is used in the washing machines? Explain in detail the construction and working of the motor used. Report Writing (Typed) ( Minimum 350 words )

2- With necessary sketch, Explain the mode of operation of chopper which is turn off due to external circuit’s current. Write its merits and demerits.